Do you find getting "fit" harder when there is not many supporting you or alongside of you?

I am currently in the yes category. I cannot workout because I have no job or car to go to a gym. And working out at home isn't always the best because there is not much time or I have no support personally at home. I'm eighteen and have a gut that I hate with a passion, though, I am not fat yet. I just need to get rid of this gut. I have been trying to for years, but it always seems to fail. I'm trying again to see how far I can get this time.​​