You're smart to come asking for motivation as a first step. If your motivation is maxed out literally nothing will stop you from doing what you want. That's the theory behind it, basically.
You can skip down if you want to just get motivated.
Before I go any further, I'm a 17 5'9 162lbs male that can do anything he likes with his healthy slim body. One year ago, I was in the hospital, obese at 225lbs, on medicine for my chronic pericarditis, a condition where your heart sac gets inflamed and has a 100% mortality rate if not treated. I was on medication, steroids called prednisone which I bet you're on too. Made me hungry all the time, angry and sweaty.
One year ago I was a fat sad sweaty guy who did not see his life going down hill by getting struck with a heart attack at 15 and having to get open heart surgery and then getting cursed with life threatening permanent complications. I just wanted to play basketball but no, I have become a fat sad lump of imprisones hopes and dreams.
But during it all there came a point where someone reached out to me and told me, your stuck in a circle. Get sick, get in meds get fat, get off meds, get sick again, get on meds, get fat, etc.
Also I use the word 'fat' just as a general term for being unhealthy. Not as a name calling word. But the guy who told me this, he said Your stuck in a circle, how do you expect anything to change. And at that moment I decided, it's not impossible for me to overcome the odds. To reach my goal of becoming healthy again.
MOTVIATION PART:
I got myself motivated by writing out my goals on paper and taping it to my door. Make your goals clear and concrete. And then under it write HOW are you going to reach your goal. For me I wrote Eat natural foods only and follow a Paleolithic eater lifestyle everyday, as my goal. Then under I wrote how I will reach it, by not eating grains, dairy, legumes. And that was just a smaller goal from my ultimate goal to reach 9% body fat! which I wrote down too. I chose 9% just so I could have a concrete measurable number to track my progress.
Also you need to write down, somewhere private trust me, WHY you want to get healthy. Think of all the reasons and write them down. To be sexy, to not sweat when walking up stairs, all these reasons you would never publically share, write them down. Be honest with yourself, fuel your mind with the truth of what you want to acheieve.
Lastly, the greatest part of motivation is sadly, not easily altered. Your success will be based off one thing. And one thing alone.
How important is this to you. Even more importantly, are you doing this for you? It's ok to do things for others as motivation. Just a thought provoker. A year ago, I have been experiencing the physical extreme pain every day from my own health condition pericarditis, it really sucks having an uncommon health condition with no cure that is very dehumanizingly painful. This is what gave my drive and motivation. In my head, nothing else mattered It was incredible, just the sheer desire to be happy and not in pain took over and I did the impossible, got healthy, lost weight and it made my pericarditis calm down and I haven't been on predisone in 6 months.
FYI, what I did, I honestly just went completely paleo cold turkey and that diet just changed my life. It's really all I did. I still eat paleo today, it's become a lifestyle, the diet is aimed for weight loss and people with medical issues. MY doctors can't explain why I suddenly am better, it's funny they just look at me and say 'whatever you're doing keep doing it'. And now I'm stuck in a new circle, a circle of being happy and healthy.
To get motivated you need to truly want in your heart and in your spirit, to reach your goal. Since then, I have been unable to muster that kind of self discipline and motivation for myself again. It was incredible honestly and nothing short of a miracle in my honest opinion. If you want my help losing weight dude I can be your guide and help you out, just PM me or respond here assuming you ever log in again haha.