Would you contact her after months?

So there's a girl I know for like 2 years. I kinda like her but we never really talked, I had one try over text but I messed up. Later on she got into a relationship and she blocked me on FB as I kept watching her stories there (at least I guess this is the reason, she has 2 profile but she just unfriended me on her second).

They broke up in the summer so she is single since that and I just can't stop thinking about her even if we haven't seen each other for months. I know that she liked me before she got into that relationship but she might be angry at me by now because I didn't talk to her. (Yes, I'm introverted, shy, overthinker and have anxiety...)

I really want to talk to her, explain to her why this all happened and confess my feelings for her...

But I can't just text her so I want to meet her face to face, I don't know what her reaction would be or if she even wants to see me.
Is this a bad idea? What should I do?
Would you contact her after months?
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