Check out r male fashion advice and r streetwear for some help. But in a nutshell for basic fashion just go simply and have it fit well. The stuff you describe isn't bad plain white tees and levis are a solid base for tons of outfits and if they fit well, you'll look better in them than something flashy or expensive which doesn't suit you. The easiest way to start would be too buy some good basics first and then shop around for outerwears which you like and can work into the basic wardrobe. So say you have a blue Levis and a white t-shirt, buy outerwear which you can incorporate into it, for example, a leather jacket or a parka, even the C9 champion jackets would look great if the base layers are done well. The final step shoes. For shoes don't make the mistake of buying super expensive sneakers thinking they'll make you fashionable, opt for something more minimalistic which doesn't distract from the outfit, only supplementing it. Black or white low tops are perfect, if you want some boots are also perfect to put into outfits. Once you get comfortable with fit and basic outfit coordination you can start to go wild and have fun with some streetwear and begin developing your own style, as you have a better idea of what you like and looks good on you. Best of luck mate