Try to see and feel what it is you really want. Think about your end goal. Where you ultimately want to be. And try to feel, seriously feel how much you want it. If you don't want it enough you WONT be able to rationalize the stuff you need to do to get there as worth it. If the thing you see at the end of the road doesn't seem to be worth doing what you need to do now to get there, and yet you are bothered that you feel trapped by your lack of motivation, then maybe you don't really know what you want in the end.
Don't listen to what others tell you you want. Listen to what you really want, and you are allowed to think of it, because nobody can hear what is inside your head.
And if it turns out you really want nothing, don't feel bad about that. There is no standardized criteria for living life the right way. If you want to do nothing, if you can be happy doing nothing, then you are blessed.
Overall, the key to getting shit done now, that indirectly helps you to get where you want to go in the end, is to try and FEEL, not just know, but FEEL how much you want the thing at the end. Feel how good it would be to get it. Then the things you need to do now don't seem like that bad of a trade.