I can't feel like I'm a guitarist (serious)

3 years ago, I decided to take guitar seriously.

Now, I can descently play "simple" full songs (chords & arpegios, licks) while singing on top of it. In front of people.

I even wrote some originals.

I practice 2h a day, virtually every day : picking technique, rythm, scales, solos, drop D riffs, etc ...

I know evey note on the neck and all the necessary theory : intervals, scales, chords, harmony... (Thank you, Scotty West).

But I can't call myself a guitarist. Because :

- I'm nowhere where I want to be technically

- because my main instrument was my voice for 20+ years

- Because everything new that I want to learn feels REALLY hard at the beginning (way more than when I learned to sing).

- I stress a lot when playing in front of others

I'll post a link in the comment so you can actually see/ear me play a full song. Criticism accepted.

What can I do to FEEL LIKE I'm also a GUITARIST now ?

How did you manage to get past this "impostor syndrome phase" ?