Welcome to Pherotalk. There are a few men around your age with similar troubles, so you’re not alone here. You may want to read this thread that I’ve linked for you below. It will help a great deal.
As for pheros, I’d advise Turn Up The Heat in double strength, Instant Honesty x4 - it works well for those communication problems, if you have any - and A314, for the alpha vibe that says ‘suave, confident alpha male’. Many women find that incredibly attractive.