You gotta wanna.
Otherwise put it down and find something that does interest you.
Trying to learn to play guitar (or doing anything....., sports, work, have sex, crossword puzzles) without enthusiasm is a sure path to frustration and depression.
If you don't enjoy it , don't do it. One day you may get the uncontrollable urge to pick it up again.
I started playing around 22. Played a few hours a day for my own enjoyment.
Few years later , I got busy , playing got boring, and put I it down.
Few years later picked it up again. And it felt good.
Got busy again building a business. Picked it back up when the business went bad.
Finally I got to where I do not want to put the damn things down.
For an example of playing with enthusiasm..... I was fired from a pretty good job a few months back.
I saw it as an opportunity to play 4-5 more hours a day for a few months.
Right now I'm nursing a sore ring finger from playing 9ths in a load of Blues progressions all day yesterday.
I start with an idea of practicing for an hour or two , then finally look at a clock and see 5 hours have gone by.
Happens all the time. I make a lot of "sorry, I got caught up and forgot " calls.
When I was working my schedule was:
Get out of work at 10pm, eat something quick, start playing by 11pm.
Wake up at 5-6 AM in my playing chair with the damn thing still strapped on and my hand clutching the neck.
Play for another hour, till 6 or 7am, then go to bed for real.
Get up at the "crack of noon" , go to work, and do it all over again.
And I SUCK! Seriously. If I can get through "Over the Hills and Far Away" without a misstep it's a very good day.
I play with friends on the weekend, 8 - 12 hour sessions with a break for dinner.
They tell me I'm better than I think.
But nobody's gonna pay to see me play. Not yet anyway.
I'm always forgetting songs, still can't sing and play at the same time.
And I've been playing for 30 years!
Pathetic? Yes. But nobody is going to stop me from playing.
So don't worry about it. If it's not your thing right now, find something else to do.
It'll be there when you get back.