Please help! In need of support.

Randomly a night ago at 2 AM, I signed up for a dating site, which I have never done before. I was feeling lonely and caved in, and the instant gratification appeals to me. I even went on a date today and almost randomly went out with someone I talked to for just a minute for New Year's, but his original plans pulled through where we did not. I'm noticing some cycling and mixed mood between depression and early signs of mania.

Some of my concerns:
-The dating scene can be very triggering for me. Mania and impulsivity have caused me to make some crazy or quick decisions. Actually, I already feel I'm going down that path, and it's hard for me to put on the breaks.
-On the other side, I want to believe that dating can be good for me to see what's out there.....but in the virtual world with so many people talking to me (even already), I'm leaving myself vulnerable for making mistakes all over again. I feel more sexual lately, but have a hard time not acting on those thoughts.
-I still have feelings for both my exes and compare people the amazing chemistry I used to have with them that hasn't been fulfilled

Biggest Concern: I am not stable. Plus, I went from isolating, to all the sudden talking to tons of people. I have a feeling BP is going to affect all these situations and relationships. I also fear if I will find someone who will accept my manias, depressions, episodes. I feel very much alone and as if nobody will understand. I crave acceptance, yet I'm terrified of entering a relationship. The fun of casual dating appeals to me, but can be destructive. I know I need to hide my diagnosis and not introduce myself saying, "Hi, I'm Bipolar," but it currently feels like my identify and concealing it seems that I am wearing a mask.

I wonder if I'm in over my head, or if it's the right time to meet people at all. I have so many mixed emotions. I'm rapidly cycling. Has anyone been in this spot before or can relate on some level? I hate how being BP seems to be such a big part of my identify, because this illness sucks and is taking over my life, even when I try to pretend it's not.