I have created a trigger which creates an Individual, ConsentPointEmail and ConsentPointConsent records whenever email address is changed on a Person account. Have done the same thing for Phone number change. I wanted to check if I can convert that trigger to a helper class. Below is my trigger code: 

trigger consentAccountTrigger on Account (after update) {

string IndId;
string accPersonEmail;
string accPhone;    

List<Individual> IcList = new list<Individual>();
List<ContactPointEmail> cpeList = new list <ContactPointEmail> ();
List<Account> acc1List = new list <Account> ();   
List<ContactPointConsent> cpcList = new list <ContactPointConsent> ();
List<ContactPointPhone> cppList = new list <ContactPointPhone> ();
   
for (Account acc: Trigger.new) {
system.debug ('inforloop');
      if( trigger.oldMap.get(acc.Id).PersonEmail != acc.PersonEmail && acc.IsPersonAccount == TRUE && acc.PersonIndividualId == null){      
          system.debug ('checkIndividual');   
          Individual Ic = new Individual();
          Ic.LastName= acc.LastName;
          Ic.FirstName = acc.FirstName;  
          IcList.add(Ic);

}else if (acc.PersonIndividualId != null){
          IndId = acc.PersonIndividualId;                 
}

 }

    insert IcList;

for (Account acc1: Trigger.new) {
accPersonEmail = acc1.PersonEmail;
accPhone = acc1.Phone;    
if(IcList!=null && !IcList.isEmpty()){
for (Individual Ic1 : IcList){
    if(accountRecurssionHandler.avoidrecussion == TRUE){               
       accountRecurssionHandler.avoidrecussion = FALSE;
       Account acc2 = new Account ();
       acc2.id = acc1.Id;
       acc2.PersonIndividualId = Ic1.id;
       IndId = Ic1.id;
       acc1List.add(acc2);

}

if(trigger.oldMap.get(acc1.Id).PersonEmail != acc1.PersonEmail){
              
     ContactPointEmail cpe = new ContactPointEmail();
     cpe.IsPrimary = True;
     cpe.EmailAddress = accPersonEmail;
     cpe.ParentId = Ic1.Id;   
     cpeList.add(cpe);

 }             
 }

 }else{                                     
if(trigger.oldMap.get(acc1.Id).PersonEmail != acc1.PersonEmail){

 //if(acc.LastName == IcLastName){               
ContactPointEmail cpe = new ContactPointEmail();
cpe.IsPrimary = True;
cpe.EmailAddress = accPersonEmail;
cpe.ParentId = IndId;   
 cpeList.add(cpe);

 //}

}
}                                                             

    }

        update acc1List;                                      
        insert cpeList;   

    

        for (Account acc3: Trigger.new) {
        for (ContactPointEmail cpe1 : cpeList){  
            if(acc3.PersonEmail == cpe1.EmailAddress){
               ContactPointConsent cpc = new ContactPointConsent();
               cpc.Name = acc3.PersonEmail;
               cpc.ContactPointId = cpe1.Id;
               cpcList.add(cpc);                          
}
}         

        }

        //insert cpcList;

        
        for (Account acc: Trigger.new) {
          system.debug ('inforloop');
          if( trigger.oldMap.get(acc.Id).Phone != acc.Phone && acc.IsPersonAccount == TRUE && acc.PersonIndividualId == null){      
          system.debug ('checkIndividual');   
          Individual Ic = new Individual();
          Ic.LastName= acc.LastName;
          Ic.FirstName = acc.FirstName;  
          IcList.add(Ic);

}else if (acc.PersonIndividualId != null){
          IndId = acc.PersonIndividualId;                 
}

 }

    insert IcList;

for (Account acc1: Trigger.new) {
accPhone = acc1.Phone;    
if(IcList!=null && !IcList.isEmpty()){
for (Individual Ic1 : IcList){
    if(accountRecurssionHandler.avoidrecussion == TRUE){               
       accountRecurssionHandler.avoidrecussion = FALSE;
       Account acc2 = new Account ();
       acc2.id = acc1.Id;
       acc2.PersonIndividualId = Ic1.id;
       IndId = Ic1.id;
       acc1List.add(acc2);

}

if(trigger.oldMap.get(acc1.Id).Phone != acc1.Phone){
              
     ContactPointPhone cpp = new ContactPointPhone();
     cpp.IsPrimary = True;
     cpp.TelephoneNumber = accPhone;
     cpp.ParentId = Ic1.Id;   
     cppList.add(cpp);

 }             
 }

 }else{                                     
if(trigger.oldMap.get(acc1.Id).Phone != acc1.Phone){

 //if(acc.LastName == IcLastName){               
ContactPointPhone cpp = new ContactPointPhone();
cpp.IsPrimary = True;
cpp.TelephoneNumber = accPhone;
cpp.ParentId = IndId;   
 cppList.add(cpp);

 //}

}
}                                                             

    }

        update acc1List;                                      
        insert cppList;   

    

        for (Account acc3: Trigger.new) {
        for (ContactPointPhone cpp1 : cppList){  
            if(acc3.Phone == cpp1.TelephoneNumber){
               ContactPointConsent cpc = new ContactPointConsent();
               cpc.Name = acc3.Phone;
               cpc.ContactPointId = cpp1.Id;
               cpcList.add(cpc);                          
}
}         

        }

        insert cpcList;

}