trying to change habits and be fit, what do you think?

Great job, what did you do differently?

I started doing crossfit (3 times per week on first month, then 5 days a week for the rest until now) and change my food, replace food with sugar and start eating a little bit better, thats about it

While I do think the lighting is helping you out a bit in the 'after', there is definitely an observable difference. Keep going, the real 'after' will take years of consistency.

nice work man! keep staying consistent

Good job.

make it a lifestyle and you'll be truly amazed looking at yourself a year from now.

From here you will fall into a spiral of never big enough or lean enough without realising how far you have come from where you started.

Great job OP. Keep it up!