The irritation is understandable because one feels compelled. The source of this compulsion is a conditioning that we need to conform to or do what others suggest lest they be displeased.
The remedy is to learn to walk alone and stop worrying about other’s opinion. Take your decisions, make your choices but no need of trying to convince anyone or argue with others. Tell them they may be right from their point of view but you have to walk your way.
After a while people understand and respect you for your integrity. Be firm but without irritation. Then you will be able to resist the pressure best.
At the same time give a patient hearing to everyone and see what they are saying rationally. Instead of accepting blindly or rejecting thoughtlessly take a moment to reflect with the help of reason and discernment and then decide. Getting irritated by what others say often indicates an inner acceptance and hence the feeling of compulsion.
Affectionately,
Alok Da