My thoughts are you should have done more research into this beforehand.

Bitcoin mining is not something you can do at home. Its something you do in a datacenter where the miners can be kept cool and have lower electricity costs.

You also have to keep up with the difficulty increases by buying more miners as you go forwards. And you have to understand its all a risk and that drops in BTC price can wipe out your profit.

I still don't see what your problem is, $15 a day still takes only 80 days to break even on your investment. What other investment opportunity gives you that?