Forever 21 has pretty cheap clothes! Always look in the discount area in American Eagle. Levi's is also having a sale on jeans, which they're all amazing, for $20. I bought just one pair but I could've gone back and buy like twenty more. Always ALWAYS look for discounts! Hot Topic has funny graphic T shirts, some with lots of colors, and others with the same monotone and dark colors like you wore previously. T-Shirts are always relatively on the cheaper side. If you want a certain shirt, then try saving up your money and and spending your own rather than have your mom pay for them... always works for me, haha.
Good luck sweetie!
ae - the first store i went to before i started going to these four. i loved it, i still have the sneakers i bought there and the necklace and everything. prices are moderate but you get what you pay for.
abercrombie - probably the most well known and worn out of all four, but also the most ridiculously priced and hardest to look good in. if you have any belly fat whatsoever, dont even try their "muscle fit" clothing, unless you want to look five pounds heavier.
hollister - omg <3 haha i love them so much. they're my favorite, their clothes fit in a comfortable & flattering way and they always have so many different shades so you can get exactly waht you're looking for. the prices are up there but they do come down and the clearance has a nice selection.
aeropostale - i like some of their things but their t shirts are kinda weird - idk maybe it's just me but they feel odd on me. however i love their hoodies and tehir prices arent always outrageous.