You're going to kick me but you sound exactly like my dad..
I get that a lot from all you young whipper snappers! I'm going to take that as a compliment, even if you didn't mean it as one.
Then also the song I liked him to play the most, "Puff The Magic Dragon".. haha!
Now here's a clue to how old I am. I remember playing "Puff" when I was in Viet Nam.
Now back to the subject at hand. I was not saying that you shouldn't play by yourself. I'm just saying you cannot get the full satisfaction of playing unless you do play with others. Plus, you cannot get the education needed to be musician unless you do play with others. So, stop playing with yourself and .... wait a minute, this isn't coming out right. Awe, just start playing guitar with someone.
And Light whatever the number is, I bet your father is proud of you. If he isn't, then make him proud!