Unless you're in a very unique situation that provides you with unusually cheap (or free) access to electricity, it's very unlikely that mining (regardless off equipment) with metered payouts can be financially rational for the typical pleb. Even with solar panels, for example, you'd almost certainly be better off using them to offset your other electrical needs. (it's just a matter of properly assessing opportunity costs).

You may as well just accept the project as a loss, solomine, and cross your fingers. 🤞