This'll sound weird and kinda crazy but I had this obsession with increasing my limit ever since I was 18. Lol. I rarely spent more than I could afford (or that my parents wouldn't pay off for me) but I loved using it for everything and paying it off and asking for increases every so often. And once you start working full time, it becomes easy to increase your limit as long as you pay on time and you have a good income. It's been kinda like a game lol.