As a not-freelancer, whats the amount of companies you worked for?
This was #4 and im beginning to doubt myself. Maybe i should do start some other career or something.

In the last 10 years I worked for 5 companies (including an outsourcing one that sent me to three different clients).
You should not feel down. This is somewhat natural. One day you will find one that will just click and will make you want to stay for a long time.

Cheers!

6 in 5 years.