Self-learning any instrument is exceedingly hard. I cannot recommend a tutor highly enough. There's a lot of, well art to it that's difficult to convey other than in person. Self-learners often pick up bad habits which limits them and drain the fun out of it.
I picked up clarinet a few years ago, and while I made good progress just from practicing it was not until I engaged with a tutor I really got going.
This, times 100. Other commenters in this thread recommend apps like simply piano. That is bad advice. I have a tutor 30 mins per week and made my progress exponential. All the popular apps are just video games with high scores etc. No feedback on posture, fingering, tempo and lots of other stuff.
Please, please, find a tutor and be amazed about what he or she can make you accomplish.
I picked up clarinet a few years ago, and while I made good progress just from practicing it was not until I engaged with a tutor I really got going.