The best way to to stay motivated is to create a vision board providing images of your desired goals and future this will remind you daily of what you are working towards and will keep you on your toes.
When it comes to self motivation it is important to keep track of what needs to be done so create a list or schedule making tasks easier to do.
You should also surround yourself with positive people who are able to speak courage and positive thoughts and feelings so that you may feel the need to do the best you can in order to achieve your goals.
Staying motivated and consistent can also be done by finding yourself a mentor or inspiration in someone else that are archiving goals you also want to achieve so learning from them and being guided by them would definitely help motivate you into the right direction.