How did you get experience?

[Belzelbub]

Hello! how can I practice my buoyancy in a pool? Do I gear up completely it sounds very interesting and will help me a lot since I am a newbie

Yes. Gear up completely. Most likely you'll need a public pool due to size and depth, and they may or may not allow scuba diving. You'd just need to ask.

Then just put on the gear you would need for the water temp. Weights, BC, Tank, Regulator, etc. Then just work on establishing neutral. Try to get close to the bottom without touching. It's also a good way to do a weight check (when tank is near empty). You'll need to adjust weight if/when you dive in salt water.

One thing, though. Chlorine is rough on dive gear. Especially BCs and wetsuits. You'll want to rinse/soak real well afterwards. If you plan to do this frequently, might be worth picking up a cheap used BC for this purpose.