Sorry you slipped. I know you are working you ass off right now for each hour so this probably felt like quite a punch in the gut. We have all been there and none of us are down on you. Pick yourself back up, dust off and start again.
It may sound strange, but By being honest and putting this stumble on this forum, you really helped me. I love the positivity of this sight but it is also good for me to see that the struggle is real and it can get you if you let your guard down.
My thoughts are with you tonight. Don't let it win. You can do it!