Whoa, take a step back. First off, if you ever feel completely overwhelmed, you may want to consider professional help--ignore the negative stigma associated with it, therapists and psychologists and psychiatrists and help lines are there purely to help you. Not all action needs to be drastic, but if your SI is getting worse, you definitely want someone to know about it now and keep tabs on it. You'll feel a lot better just knowing someone else cares.
Secondly, it sounds like you might welcome a few distractions and a few new happy memories to reflect on when the going gets rough. Invite the person who always makes life brighter for you--it may not be someone you know well--and take a day off to do something fun.

I am seeing a therapist and a pyschiatrists. I talked to my therapist the other day to let her know what is going on, but things are still really tough.
Next I don't have anyone that can distract me like that. I have no friends and my family really doesn't understand what is going on. I can't talk to them.
My happy thoughts are few and far between so to find one that works is very difficult.

It's great that you're seeing a therapist and all. But you said yourself that you aren't sure you want to stop. And, I'm speaking from experience when I say this, if you aren't sure that you want to recover, you probably won't! No one can help you unless you're willing to help yourself.

As for the distractions, you can always listen to music, read, clean, take a walk. Just something to get you out of the house and to take your mind off of cutting.

just take a breath and step back, look at the scars you are creating. I know it doesnt help much... you need to look at the people that really do care about you.