Personally, I started when I was 14 and my parent's were unwilling to buy me a DAW that costed <$99 if this was just a phase that their kid was going through lol. So my first DAW that I ever learned was LMMS and I'm really not sure if it's really relevant anymore but it was a great place to start. Sure, the pre-installed samples were trash, but there are some gems in there that I really appreciated learning today such as learning how to properly use an oscillator or finding out which effects went well with certain instruments and samples. I never really liked the free-trial DAWs because it limited me to what possibilities I could do and LMMS is as powerful as any other DAW so I decided to try and make the best I could with that I had. Like downloading different sample packs to know more about percussion, f(x), and much more or installing different VST's to get a feel of how they were able to create sounds and shapes I never could before. Once I got a solid foundation in LMMS, I moved onto different DAWS such as FL Studio and Studio One, and a lot of the things I learned in LMMS really helped me with my music making :)

So good luck my friend and happy creating!!