HI

 Am new to salesforce..I  wrote a trigger .it is working fine but now i want to bulkify my trigger...please help me to bulkification.

I am sending the trigger . 

please help me for bulkification.....thanks in advance

trigger WOW_Block_Time on Appointment__c (before Insert,before update)
{
for(Appointment__c APP : Trigger.new)
{
Time_blocks__c[] TBS = [select id,name,branch__c,date__c,staff__c from Time_blocks__c where Branch__c =:APP.Branch__c AND Date__c =:APP.Appt_Date__c AND RecordTypeId='012O0000000CldF'];

if(TBS.size()>0)
{
App.adderror('Blocked Branch!!');
}

Time_blocks__c[] TBS1 = [select id, name , Branch__c , date__c , staff__c from Time_blocks__c where Branch__c =:APP.Branch__c AND Date__c =:APP.Appt_Date__c AND staff__c =:App.Doctor__c AND RecordTypeId='012O0000000CldK'];

if(TBS1.size()>0)
{
App.adderror('Blocked staff');
}

Time_blocks__c[] TBS2 = [select id,Appt_24_Frm_Hour__c,Appt_24_Frm_Min__c,Apt_24_To_Hour__c,Apt_24_To_Min__c from Time_blocks__c where
Branch__c =:APP.Branch__c AND Date__c =:APP.Appt_Date__c AND staff__c =:App.Doctor__c AND RecordTypeId='012O0000000ClgY'
AND Appt_24_Frm_Hour__c !=:null AND Apt_24_To_Hour__c !=:null ];
if(TBS2.size()>0)
{
for(Time_blocks__c tbs3:tbs2)
{
integer fromhr=integer.valueof(tbs3.Appt_24_Frm_Hour__c);
integer frommin=integer.valueof(tbs3.Appt_24_Frm_Min__c);
integer tohr=integer.valueof(tbs3.Apt_24_To_Hour__c );
integer tomin=integer.valueof(tbs3.Apt_24_To_Min__c);

integer hr=integer.valueof(app.Appt_Hour__c);
integer min=integer.valueof(app.Appt_Minute__c);

if(app.Appt_AM_PM__c=='AM')
{
if((hr>=fromhr &&hr<=tohr&&min>=frommin&&min<=tomin)||(hr>fromhr &&hr<tohr)|| (hr>=fromhr &&hr<tohr&&min>=frommin&&min>=tomin)||(hr>fromhr &&hr<=tohr&&min<=frommin&&min<=tomin))
{
app.adderror('time blocked');
}
}
else if(app.Appt_AM_PM__c=='PM')
{
if(hr==12)
{
hr=12;
}
else
{
hr=hr+12;
}
if((hr>=fromhr &&hr<=tohr&&min>=frommin&&min<=tomin)||(hr>fromhr &&hr<tohr)|| (hr>=fromhr &&hr<tohr&&min>=frommin&&min>=tomin)||(hr>fromhr &&hr<=tohr&&min<=frommin&&min<=tomin))
{
app.adderror('time blocked1');
}

}

}

}

Time_blocks__c[] TBS4 = [select id,date__c from Time_blocks__c where Date__c =:APP.Appt_Date__c AND RecordTypeId='012O0000000ClhH'];

if(TBS4.size()>0)
{
App.adderror('Blocked date');
}

}

}