Felt a bit insecure. Will I have another chance?

During my relationship, I have to be honest and say I did have a bit of insecurity. Not about not trusting my partner or being jealous etc. My insecurity was that I didn't feel I was getting the right amount of attention I needed. Some say validation. And when I saw she was OK with everyone else, it used to run me anxious from time to time.
However, 3 years relationship was overall good. I believe my attachment style is anxious. She sounds more dismissive avoidance. She broke up a week ago because she said she couldn't bare it anymore. I didn't beg or plead much apart from saying don't, reconsider pls etc. And she said no and left. She partially blocked me and ever since then I didn't text or reach out whatsoever. Do I have another chance in the future?
Felt a bit insecure. Will I have another chance?
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