My layman's suggestion is that, rather than trying to read the ancients, start with how ideas from them and more current philosophers are relevant in today's debates. This is akin to diving into using a prog language with little understanding rather than reading books about it, it's more fun!

If you want to follow the above approach I think the best resource is the fantastic Philosophy Bites podcast (http://www.philosophybites.com/) where philosophers are interviewed. And if you're more of a printed matter type of person, they have books with the transcribed interviews, too (https://www.amazon.com/Philosophy-Bites-David-Edmonds/dp/019...).

This, I think, is a great way to identify the areas of philosophy you're interested in to zoom in further.