I always tell myself to start exercising, but I’m just too lazy. I always tell myself to start exercising, but I’m just too lazy.

Correct but, how about: I always tell myself to exercise / to go exercise, but I’m just too lazy.

I'm always telling myself to start exercising, but I’m just too lazy. I'm always telling myself to start exercising, but I’m just too lazy.

Progressive as something you are currently doing at the moment.

😂Every time I try to work out, it feels like torture. 😂Every time I try to work out, it feels like torture.

Whenever I work out, it feels like torture. / Whenever I try working out, I quit right away.

I know it’s good for my health, but sticking to it is theA real challenge. I know it’s good for my health, but sticking to it is A real challenge.

The: I would use in a comparison situation. Ex. Waking up early is difficult (enough) but sticking to it THE real challenge.

I know it’s good for my health, but sticking to it is thea real challenge. I know it’s good for my health, but sticking to it is a real challenge.

Losing FiWeight is So Difficult! Losing Weight is So Difficult!