How do I know if he's using me?

You obviously have some doubts about being the constant 'giver.'Trust your instincts….

You don't want to feel or be used, you say. That's good because whatever money you have is yours and you should not feel guilty about NOT handing it over to someone else who is of able body and mind; they can obtain their own.

Also, it is not really helping anyone out to constantly be giving to them. It undermines there confidence to get it for themselves. It is not really helping, if he is capable of obtaining money himself, but doesn't for (oh so many reasons.) The best charity you can give someone is to make them independent of the need for it.

So I suggest you give yourself a silent deadline of say one or two months and during that time Do NOT give to him. If he asks (and he shouldn't) tell him you are saving it for something big you want. See how it goes.

If he leaves or starts hassling you–then you know. If he doesn't, then maybe it is okay. Although to realize his own potential he needs to obtain money and objects for himself. After all you do; and it's not that easy for you. Who ever said it would be easy. It may be hard for him, but he can do it, if he really wants to.

God bless