I agree. It has happened with me too. I you do something regularly ,you definitely get better at it but if you stop doing the same, you get rusty.
Same is the case with you I guess, no offense.
But I think you will regain your momentum once you start blogging again regularly. So you don't need to worry about that right now. You have your laptop and your tablet on your plate right now, get them fixed first and get going again. Thanks