Noises/clunks get worse, so ignoring it is not a good plan. Would need a lot better pics of the bb, but I would start there. Also search the mechanics forum for various noises. What sounds like a clunk to you, might be something different. Almost anything on a bike can be fixed. Too early to give up now. Any wobble/play in the bb? Hard to diagnose over the internet, I would save up a little coin and go to a shop. At the very least, a good shop can give you an idea of the problem and cost to repair for very little.