I can relate. Last night my phone screen completely cracked and I cannot replace it till Monday. I was livid and basically throwing a temper tantrum. I used a DBT called radical acceptance and caught myself before I went that far but I was upset because a normal person would not act as I did. We are not equipped as others and remember you did the best you could at the time with what you were presented at the time. It's not about dwelling on the past or where to go from here. It's HOW you go from here that counts. Try not to dwell on what you can't change.