[Mz]

I just wonder if the people who are successful got that way because they are really good at sucking it up and pushing through years of hating life

Well, to some extent, the answer will be different for everyone, but I think most successful people are decently good at figuring out how to get some of their own needs met regardless of what life circumstances swirl chaotically around them. Money per se does not take care of anything. (Example: If you have an incurable deadly disease and are ridiculously wealthy, your money can't buy your way out of it because there is no "off the shelf" solution already available for purchase.)

Einstein said that you can't solve a problem from the same mental space that created it (or something along those lines). But, other than suggesting that instead of looking for different answers to the same question, you need to ask different questions entirely, I don't really know how to help you. There isn't enough detail here for me even begin speculating as to why you are stuck and what you might do to get unstuck.

Best of luck.