Only One Out

So its been awhile since my last post and a lot has happened.  I have been grinding HU on carbon and its been going okay.  I am hovering around $1k but it could be much better as variance and my own stupidity have been a bitch.  I had around $1,800 at one point and was playing 50nl until I played a very bad fish that ran super against me.  The match started out okay and then it went downhill and I was down 4bi.  No big deal I said I just ask this fish to play higher and more tables and this will even out and worst case scenario I can quit when I have $1k left in the account as that will be easy to build back up.  Basically worst case scenario happens and for the first time playing HU I feel like I didn't have self control in my game and I think that I had tilted which is something I have never done since playing HU even through worse swings.  From that point on I have been playing break even for close to 10k hands and can't seem to get any momentum.  I believe it just variance but it still sucks as I would like to move back up to 50nl which I have decided I won't do until I hit 2k.  Today I felt really stupid as I was 4 tabling some guy and randomly he leaves one table and some uber nit that I had stats on insta sits in so I didn't notice.  The guy I had been 4tabling stayed on the 3 tables and we had this 3 and 4bet dynamic going but the nit only 4bet the nuts so I lost 2 buyins to him before I noticed and ended up breaking even for the session which would have been a winning one which I so desperately wanted.  Also my computer crashed and I had to reformat my ssd and carbon won't send me one weeks worth of my HH for "security reasons" since my backup drive only backs up every sunday and the crash happened on a friday.