A while ago i watched a video of a lecture given by Andrew Price (the face of Blender Guru) at a Blender seminar, entitled "The 7 Habits of Highly Effective Artists", he gave some great motivational advice for artists that can be used in most industries where "art" is involved, including modelling and game making, here's a brief outline of the 7 points:
1) Daily work
Getting started in a project is the hardest part. Try to do something at least once a day, even if its only drawing a line, you will find that you cant stop there and end up doing a lot more.
2) Volume, not perfection
Try to avoid getting into the trap of perfecting everything, you end up frustrated and stuck on one piece, do a lot of work to a good standard, then go back and tweak later.
3) Steal
Well, not exactly steal, but take inspiration from others, and lots of it. To copy one persons work is plagiarism, but to create a piece of art that combines inspiration from lots of people is originality.
4) Conscious learning
We've all heard of the phrase "practice makes perfect" right? Forget it, it's rubbish, it's been proven that doing the same thing over and over may help improve your work a little, but ultimately all it will do is help you draw that face or model that house exactly the same over and over, you won't gain progression and will end up stuck in a rut, always try to learn something new, watch videos on YouTube, look things up on the internet, you will be surprised at how much you can learn about a subject you thought you already knew.
5) Rest
Ever been stuck on a project, unable to progress, then given up and ended up having a great idea in the shower? That's what this means. If you spend 4hrs on a project without a break, you get an hour maybe two of actual productivity, but if you spend 4hrs on a project with short break every hour you end up with 4hours of productivity.
6) Feedback
Don't be afraid of asking other people "is this any good?", take criticism from people good or bad, and don't get upset about the bad. Some of the worlds top artists got to the top because they weren't afraid to ask the question "am i any good?". Pixar have a room in which they have a monthly get together of the whole production team. Everyone from junior artists right up to the executives gets together and criticizes each others work, and that's why they make such good movies. You can't improve if you don't know where you are going wrong.
7) Create what you love
Art isn't about mass producing what other people want, art is about creating what you want to create, create what you know about and love, it's far easier to make a model of something you are interested in than it is to force yourself to model something you hate.
Primary Desktop:
i7 7700,k NV1070 8GB, 16GB 3200mhz memory, 1x 2TB Hybrid, Win10.
Secondary Desktop:
i5 4760k, NV960 2GB, 16GB 2333mhz memory, 1x 2TB Hybrid, Win10.
Laptop:
i3, Intel 4000 series graphics, 6GB memory, 1x 500gb HDD, Win8.1.