Do you feel stuck?
Has your body not changed shape in a while?
Question is: have you actually changed up your training enough?
The body is so smart.
Think about going on a 10-day mountain track. The first few days you will be sore, your quads are burning and everything else is aching too. But after another few days all of a sudden your body feels fine. Why? Because it has adapted to the new stimulus.
Now if you still wanted to get further adaption whilst doing the track you would need to introduce a different stimulus.
The same is for your training in the gym.
This is why it is so important to follow programs and changing them.
If you go to Body Pump classes or do circuit training all the time your body will not change shape anymore after a few weeks.
If you are only after getting some exercise done and being active; great! Go for it!
But if you are serious about changing the shape of your body you need to introduce different stimuli so you are forcing your body into having to constantly adapt.
What are some of those stimuli?