First of all, we should take part in formal training, which is consulted by large mountaineering clubs all over the country. The country has these trainings every year. The cost is not clear now, so it's better to ask, because mountaineering is a high-risk sport, and you must have certain professional knowledge, so that you can fully deal with emergencies.

Then, you need to participate in the selection.

After the selection, you may become a registered athlete or an alpine trainer.

If you just want to climb mountains occasionally, then I suggest you take part in regular activities of regular clubs when you want to play.