How do you properly cover up body blemishes? body foundation? if so w/c brand?

I have a date coming up w/ an ex and I am afraid that of course i gonna be seen and need to cover up my varicose veins and my stretch marks. I know it sounds vain, its just that i wanna impess him. I know he has them too its just that well it would make me feel better. thanks in advance for your help.