[QUESTION] How much will it take to be good at guitar if I alredy am proficient with bass?

Yes this may sound like a silly question but it's an actual curiosity of mine. I am 22 years old and have been playing bass since 2011, and I can kinda say that I'm quite proficient with it (I'm going to take my Bachelor in music next year, I have thought in some music school, can play pretty much any genre and recently I uploaded an Animals as Leaders cover on bass), and I started "playing" guitar around one year ago for recording purposes. Nothing serious, just strumming some power chords, and I noticed how natural it actually felt and how the two instruments are directly related and one doesn't exclude the other, so recently I started studying and practicing more seriously. Right now I've started practicing pentatonics and chord positions (by far the hardest things for me now) and I can play decently the Comfortambly Numb solo. So I was wandering: how long would take me to call myself a bassist AND a guitarist? Can I become a "shredder" in 6 months? Sorry again for the sillines of the whole thing.

Also,suggest me some books/methods/Youtube channels pls!