Hmmm.... I don't want to sound discouraging, but drawing is an extremely time consuming activity that you need to devote an enormous amount of time to. I think drawing is extremely rewarding- and testing. But if you're going to start drawing it has to honestly be because it's something you have an interest in, if you're only going to draw because you want tbt, and not because you WANT to draw, not to be rude, but you'll never get anywhere. However if saying you want to draw purely for the sake of getting tbt is a joke, I'll give you some serious suggestions. I consider myself a beginner also, but maybe I always will.
When you start to draw it will be extremely tempting to think "yeah I'll start with chibis and work my way up" wrong! don't do something silly like this! starting to draw like this will hinder you extremely. You'll form bad habits and set yourself back YEARS. Or atleast in my experience it will. For the first year you start to draw, your art is not likely to look good, and this is how it's meant to be. But you need to keep slaving away and improving every day even if you aren't happy with what you got out. Instead of starting with chibis, I would personally suggest finding items in your house, posing them, and trying to draw them as best as possible. Learning how to draw from life is a huge boon. This is how you use references, references are how you learn to draw consistently, and that's the goal. The best foundation for learning how to draw is not how to use your hands, it's how to use your eyes.
I suggest you buy a mechanical pencil, and always try have a sketchpad near by. Try draw things you see anytime you get a minute. Try draw things quickly also. I heartily suggest life drawing classes, I found some cheap in a community college nearby when I was teenager, but it might not be available for you. You can find pose generators online that you can set to a timer. Generally you want to try set the framework in a matter of seconds. 90 seconds is generally the time alotted for gesture drawing.
This is so you can adjust to looking at something and very quickly understanding how to draw it. If you can master this, you've half the battle won. At this stage, your art might still look pretty bad, but you'll be building up speed and understanding.
Drawing chibis however is fine! you can totally do that, BUT! you must supplement this with figure studies and life drawing. If I were you, I'd look at things you like online and try draw them.
As I said in the start, art and drawing... it's a pretty big thing to start, and very intimidating, but just make it part of your daily routine. Burn out is inevitable, and sadness when you don't improve is also a given, but this is valuable too. Having something you love enough to become upset over like this... I think there is good to that also.
Sorry if my post didn't make much sense, I kinda wrote it as if I was talking to my 13 year old self.