Hello! Could you give me some training advices?

First I would suggest looking up on youtube or google for body-weight exercises. There are plenty of exercises you can do to get in shape that don't involve weights or expensive equipment. Here a few to get you started; push ups, sit ups, crunches, dips, planks, squats, lunge, scissor kicks, bicycle kicks, jumping jacks, walking, jogging, & running. if you can get to a park that have some form of bars you can try pull ups and muscle ups. Hope I helped some!