Let me start by saying congrats on saving. It is hard for most to do. As for your current PC have you tested the ram? Ram can cause a bunch of unexplained issues with a pc. But if a new computer is warranted it fits within the time frame. If you are building yourself a desktop pc (which is what I would recommend). AMD is coming out with the Ryzen 5 which maybe a good option for you. BUT WAIT FOR THE REVIEWS! Sorry for yelling. It is just really new tech. But you could do the safe but little expensive route. Intel i5 8g ram 500ish GB SSD as well as a 2 or 4tb secondary Hard drive. pcpartpicker.com is a great resource for building a pc. Good luck any path you choose.