I think most of us have an issue with staying motivated at one time or another. For me, I spend as much time as I can on research when my hands aren't working leather. Youtube, google books, the library of congress, websites, supplier sites, and of course Leatherworker.net have all become essential during my learning journey.
My work space initially was an 18"x18" bistro table with a bathroom granite sink cut out on it. Trust me not having enough room, as Reddevil says, is a huge problem. My space is still not ideal,.. it's schlocked together tables shaped into a U so I can spin from my computer to my tooling area to my layout area. I still have to put up and take down my cutting space and I have to go out into the garage to do other things. But I'm slowly creating a space that works for me.
Then a funny thing happened. I started "inventing" things. I created things for another of my hobbies, jewelry making and guitar. My first piece made on a lark, sold on Yardsellr.
And I had interest from other guitarists... so I made another "Thing" and it sold. I hate to say it but $ is a great motivating factor, but it can also be a creativity killer if you have a particularly demanding customer or one that feels they need to have updates every 20 minutes.
Keep in mind you can "practice" by drawing designs as well. If you can draw it chances are you can carve it.
As far as comparing your work to what you see here. Keep in mind that just like guitar... 6 months of practice does NOT make you into (insert favorite guitarist here)... It makes you, a guitarist with 6 months worth of practice. So give yourself a break. No one here with average ability just jumped in brand new and began carving and putting together perfect projects. The mistake is part of the learning process... and it's what you learn from your mistakes that makes you a better artist.
Finally, one motivating factor is not having to worry how something will come out. For this reason get yourself a few pounds of leather scrap and practice on those. Knife cuts, stamping, designing your own art, even doodling on some leather that you aren't going to make into a wallet or whatever allows you to make those mistakes, try new things and learn without the stress of having to be perfect. Just have fun. If you make a cut... and it sparks something take some stamps and turn it into a tree.
Good luck.
Sylvia