Anxiety... in I don't know what I'm doing

So I’ve been trying to get back into my normal routine. Except I’ve been walking a lot and dieting, lots of smoothies. Trying to ignore all my cravings has been super difficult, makes me kind of irritable.
Today it’s raining so I decided to skip the walk today and stay home and relax. However, now I’m filled with anxiety. I’m not sure what it’s about, it just kind of came on. Butterflies, heart rate faster, slightly dizzy feeling. I hate it. I’m taking breaths and trying to occupy my mind. I’m hoping it subsides soon. I just want to feel normal and be normal. I don’t like this feeling. It’s scary every time.
I took a moment and walked around. Feeling a bit better now. Thank goodness. Smudged the space and prayed a little. It helps. I feel guilty not going for a walk and I ate eggs with cheese. So I kind of messed up there too. So that means I got to control myself better with food and just be miserable for a couple weeks till my body gets use to it. It just takes some time and patience.
This guy matched with me on Facebook dating. We’ve been chatting the last couple days. he’s cute and sweet, seems interested in me, I think. I really don’t think I’m going to be good enough for him once we actually meet, if we do. He only lives about an hour away, but he probably matched with a lot of guys on there so he’s probably chatting with them too. I’m not chatting with anyone except him. Makes it hard to not seem so desperate and available. I’m so needy I hate it. I need to work on that and I’m not even sure how. I really need to get it together. I’m a mess.
When there is competition with another, I’m not going to win, I never do. I just the place holder, rebound or hook up. I’d like to think I’m a pretty great guy but apparently I’m not. Idk. I need to think more positive. Guess we’ll see where this goes. He told me he was going to nap 3 hours ago, and has been online the last couple hours and hasn’t reached out to me. So Idk. I should probably just move on. Ugh.