Thanks for ahring this, Luis.

Many of us went through the imposter syndrome including myself.

I can tell based on my experience you can beat it. I had it after working for 10 years as a software developer.

For me the problrm way two-fold. I used outdated technogies at my workplace for which I was hardly able to find any job ads.

The second was not feeling any sense of achievement. I haven't got any good or bad word in my work from my boss, I had no motivating goals.

I think what can help is to decompose whatever you do into small reachable milestones. By reaching those milestiones you will feel again that you are progressing.

Always have bigger (career) goals which keep you on the right track.

If you accept an advice from me, then I suggest to breal your article into paragraphs as it is quite hard to read without them.