I have created a trigger that will autopopulate Lookup field(Account Name,npsp__Notification_Recipient_Contact__c) by mapping custom fields (My_Account_Name__c,npe01__HomeEmail__c) respectively on opportunity object.
My Account Name(My_Account_Name__c) ---> Account Name(Account Lookup ) Myemail(npe01__HomeEmail__c) ---> npsp__Notification_Recipient_Contact__c(Contact Lookup)
i WANT TRIGGER SHOULD ONLY WORKS ON WHILE INSERTING RECORD.hENCE i USED BEFORE INSERT.But, trigger only creating a lookup to email field not for account field .I want tit shold create lookup to both fields i.e account as weell as contact field.

here is my code

trigger opportunityTrigger on Opportunity (after insert,before insert) {

If (trigger.isBefore && trigger.isInsert) {
      OpportunityTriggerHandler.InsertContactEmail(Trigger.New); }
/* else { OpportunityTriggerHandler.afterInsertOpportunity(Trigger.new); } */
}

trigger handler class
public with sharing class OpportunityTriggerHandler {
   public static void afterInsertOpportunity(List<Opportunity> opplst) {
        set<Id> setOfOppIds = new set<Id>();
        for(Opportunity objopp : opplst){
            setOfOppIds.add(objopp.Id);
        }
       if(setOfOppIds != null && setOfOppIds.size() >0){
           system.enqueueJob(new QuickBookIntegrationQueueable(setOfOppIds));
       }
    }
 public static void InsertContactEmail(List<Opportunity> opptList){
        // below code creates contact email lookup
        Map<String,Opportunity> MapContactName = new Map<String,Opportunity>();
        for(Opportunity opp: opptList){
            MapContactName.put(opp.My_Email__c,opp);
        }
        List<Contact> conList = [SELECT id,npe01__HomeEmail__c from Contact where npe01__HomeEmail__c
                                in:MapContactName.keySet()];
        for(Contact con : conList){
            MapContactName.get(con.npe01__HomeEmail__c).npsp__Notification_Recipient_Contact__c = con.ID;
           
        }
            
       
        // below code creates account lookup
         public static void InsertAccountName(List<Opportunity> opptList){
         Map<String,Opportunity> MapAccountName = new Map<String,Opportunity>();
        for(Opportunity opp: opptList){
            MapAccountName.put(opp.My_Account_Name__c.toLowerCase(),opp);
               System.debug('MapAccountName: ' + MapAccountName); 
        }
        List<Account> accList = [SELECT id,Name from Account where Name
                                in:MapAccountName.keySet()];
       
        for(Account acc : accList){
            MapAccountName.get(acc.Name.toLowerCase()).AccountId = acc.ID;
            System.debug('accList: ' + accList);
        }
  }
}
can anyone help me why it is not creating lookup to account field