Based on the specs of the OP's computer it looks like that's a gaming rig.  He's got cheap electricity so the 1060 will mine at a profit even if he just uses nicehash instead of learning to do the mining himself.  Seems to me that mining while he's not using the computer is just free money.  I really don't see a reason not to mine.  Everybody gets so focused on building mining farms and scaling up but the OP's scenario is what blockchain tech was designed for.  After he mines with his gaming rig for a while he'll have all the information he needs to decide for himself if it's a good idea to build dedicated mining rigs.