I don't think you're a gimmick or a bad dude. I think you're in an unhappy living arrangement and you've made little attempt to improve your situation.
You need to learn to be independent.
This. ^^^ It won't be swift/easy adjustment, but I think after distancing yourself from your family (Your father), you'll be much happier.
Pretty much this... the problem is that it's easier said than done relative to the person, hence this situation. It's sort of a trap. He is who he is, which is partly why everything is how it is... I've known a lot of people that simply stuck their head in the sand because they could tolerate whatever unpleasant setting until something changed and gave them the motivation they needed. It could be a random opportunity, a new person entering their life (friend, family, SO), or simply that they had the rug pulled out from under them and the Stockholm Syndrome (or whatever, I dunno) went with it. Based on my experiences, life is a series of ruts with a few key spill-over points, some that you can choose to ignore and some that you can't.
I got a serious wakeup call when I moved out (and 2000 miles away) at 21 and a whole bunch of things totally outside my control went to shit after about two months. Big things, no less, and there wasn't much stability for about the next year and a half. It changed my outlook on life significantly over time, as the path I'd been travelling diverged at that point from the safe one I'd been going down. It's all about finding what motivates you to give that extra effort, and for me it was removing my safety net.
Personally, one of my motivations was proving the neurosurgeons low expectations were wrong in assuming I couldn't bounce back and relearn everything I lost after the stroke and coma. And my biggest motivation for getting where I am is unhealthy stubbornness and defiance.. Defiance to accept the problem as an excuse for things being impassable or an excuse to slow down. Realism is one thing, but accepting the situation as it was explained at the time, felt like a death sentence. I'd never be able to afford my corpse being shot into the sun if I had quit lol. ---
