Hi all.
I am 20 years old and while I'm not fat or overweight, I used to be, and sometimes I feel fat (mostly is due to me being very self conscious of loose skin) ... but out of that, some days I just feel like I don't even want to put on a pair of jeans afraid they might not fit in. I was a size 30, now Im a 31. Im OK with that, since 30 was probably being to small anyways. I weight somewhere around 70kg and my height is around 1.75m ... I used to work out, go to the gym everyday and watch my nutrition, but its been a while since I've used my old set of weights or at least went for a run or a 30 min jump rope session.
I've been in a relationship for 7 months, and I think some of my lack of motivation comes from there. I used to work out, lets face it to look good, and have more sex appeal, and it worked and as soon as I got around the 5th month mark of my relationship, I didn't cared about that all. Maybe that's one reason for my lack of motivation.
Another may be: I get up at 6:30AM, and I have to be at school by 7:50 ... Right now I'm only taking one class... So I go roughly from 8 am to 9:30 ... and I don't go to work until 3:00 PM... I think this could be the time window in which I could hit a gym, but sometimes I'd just go back home and sleep till its time to go to the office. Either that, or have sex with my girlfriend.
I want to exercise again, I really do, but I give in to temptations really quick. I get home at around 7:30 PM .. and all I want to do is eat and watch TV then sleep, the cold makes me lazy to go out and exercise in this weather.
I need help on how to get motivated to really do it!! I want to, but I give in to rest instead of exercising. Hell I don't care about getting big or even lifting weights. I'd be happy with at least doing 30 mins on a treadmill at the gym. I just need to find the motivation to stop me from being lazy and choose sleep over exercise. Thanks!!!

This is probably one of the most common things people find in a relationship. If you need evidence that it's not just you, find me a guy that's been married a while that still has a great physique?! Ok point proven, relationship=lazy time.

1. If you have any pictures of when you were large, look at them.
The idea is to build fear that that is what you are heading towards. If you don't start now, I promise you that you'll be back there.

2. Find a gym partner, preferably someone new to the gym (more enthusiastic) and set out times and dates to train together.
This is a great way to be accountable to someone else, and also responsible for them. You can't let down the new gym rat. You have so much to teach them.

3. Look for a picture of a perfect physique (male physique, we don't want you getting implants), and work towards achieving that body.
The reasoning behind this one is clear, it's a goal, and until you achieve it you have to keep trying!

4. Get your lady to start at the gym.
Clear reasoning, you go with her. Only problem, you don't want her looking at guys like me and imagining certain things. You'd better hit the gym first for a while to stop her looking me up and down, and dreaming of my big arms around her. You have to train to stop her eyes wondering!!! Pump it!!! (see what I did there. A bit of psychology. Damn I'm smart haha)

5. Don't look at where you are. Look at where you want to be.
This is what I use. I have a good body. But by the standards I set myself, I'm nothing special. I've used this technique for 10 years and I'm 110kg of muscle. It's all about not being happy with your body.

Last note (a lesson from physics): It's easier to keep an object in motion, than it is to start it moving.