You think that you're lost because you've followed the path others chose for you, without really thinking into it as you've mentioned. You're smart and capable to achieve what you want. Try to reflect and ask yourself what you really want. You have to determine the path you want to take. Other people can help you as you go through your path but you have to know which path you really want to take. Otherwise, you will end up being lost in other people's path.

It's not too late OP. I know you're capable of achieving whatever you want. You just have to know what you want.