Yes, do your kegels. They will give you better erections, and generally improve your penis health. Getting gains is not the only thin in PE, penis health is also important.
Also, as said, don’t rush it, do warm wrap not just before the routine, but also after. Do kegels whenever you remember doing them.
PE isn't a chore. PE is a lifestyle.
If you feel down sometimes, come live inside my mind. I promise you'll enjoy the experience.