Just like how you have comfort foods, you also have comfort exercises too. These are common go-to exercises because:
a) they are familiar to you
b) you might be strong or good at them
c) they make you feel comfortable.
Tackling exercises which are difficult or where you’re weak are going to take you out of your comfort zone. Stick it out and you’ll notice major gains in your strength and maybe new gains in size. Try to make these your new go-to exercises.