all of my videos are stuck at 300-500 views

I think those view counts are mostly coming from your existing followers. You need to create more compelling content so your videos have a better chance of being picked up by the algorithm and recommended to a wider audience. That's when you'll start seeing significantly higher view counts.

Your video retention rate is probably too low. Optimize the opening hook to push your content to wider audiences.

I think your videos aren't being recommended on the For You page. Try optimizing your hashtags and video titles to improve their chances of appearing in search results and reaching a wider audience.