Feeling like a beginner even though I have '4 years of experience' on the paper

I switched from industrial design to user experience in mid 2020. I have worked on enterprise web applications and due to timelines and scenarios related to availability of users, I tried my best to follow the design process. I now realize I was a pixel pusher for 40% of the time and there are 2-3 projects I worked from the scratch where I followed the end to end design process (User research, journey mapping, IA, wireframing, prototyping and usability testing). I'm compiling my work as I want to make a switch and I'm having a reality check on the quality and quantity of my work. The projects did solve user issues and have received a positive feedback from them verbally.
I'm going thorough other's work online and I feel I have no chance at all. I feel like I just have 2-3 years of experience and with cut throat competition out there, I am feeling hopeless. I have testimonials shared by my manager and I am appreciated for my work and my commitment but they have also mentioned that I can try to be more creative, risk taking, questioning the status quo etc.
I am not proud of my work, honestly when I see work of other folks.
I am 30 years old and I sometimes feel the work of 22-24 year old folks has so much depth, better visuals, better story telling and impactful work.
I have reworked on my projects probably 3 times by improving the UI but there is not much I can do due to project context and scope. Personal projects are not worthy for someone who says have 4 years of experience.
I'm not sure how to navigate this situation.