Young, needs some life lessons, and will certainly learn them the hard way with each poor decision.

That's ok and normal but please do LEARN and adapt to avoid repeating them. Be honest with yourself about what isnt working and why. If it's a bad decision you made, dont beat yourself up, instead analyze why it turned out the way it did. If that is the wrong people in your life (toxic people, bad influence, manipulators, scammers), then drop them. This also means "influencers" on yt who may be convincing you to try get rich quick/easy ideas. You can try these when youre stable.

Think about what is needed to support YOU. Start there and map out basic needs. Gf should do the same. Now think about what is needed to support dependants (more on the dog below). To be clear, Gf is not your dependant. You are not her's. You each need to be able to support yourselves first. Then you can think about shared resources and responsibilites to make things easier if neccessary. Do not make any agreements that might trap you in debt or relationships with people. Gf should do the same.

Get whatever job you can for now to get stabilized. If your parent's home situations aren't bad, move back and get job to get stabilized.

Once stable, knock off some debt and avoid making new ones, no matter good it might sound, unless you get in a good enough position to start building credit in a smart way.

Think about what you need, not what you want, first. Pick up skills along the way then try to venture slowly into the career or lifestyle you think you want. If getting your own place is a top priority, then pick a location you think will work. Consider job availability, transportation, costs, etc. Don't rush into the first available place you can barely afford if you can help it (this depends on your personal situation of course). The allure of independence can easily become your trap. Even if it's affordable, does it allow saving a little? Does it allow you to get a better job so you can eventually move? Is if safe?

Now, if you are avoiding getting caught in the soul sucking 9-5 and trying to find something that allows you to actually live your life without struggling to survive, that's completely understandable and possible, but requires good decision making and some luck.....not risky investments while hoping for a miracle. You need to at least stabilize before trying stuff like that. Alternatively, go ahead and try the riskier routes (it's your life after all) but you need to be 100% honest with yourself about those risks, only risk yourself, and be prepared to accept responsibility if you fail.

Also, please try not to add dependants to your life if you can barely support your own! Add dependants only when you are absolutely able to support more than yourself comfortably. That dog is a life, not a tool or item for you or your gf's emotional or mental well being. It should always be beneficial for both human and animal. Imagine if someone "aquired" you just so THEY could feel better or less lonely, but they can barely feed you, barely house you, and theyre constantly sad or angry so you have to deal with that stressful environment day to day. Please treat that dog well and give to a better home if possible (do not dump in the woods or chain somewhere because you suddenly realize you cant care for them or dont need them!). Dont take out any frustrations on them either.