Topping up your steam wallet is very profitable and saf

The account must have a marketplace open, an authenticator verified (so that there is no 15-day delay in selling), and an inventory open.
You can check if the authenticator is confirmed by purchasing any item from the Dota 2 game (The cheapest for 0.1 rubles) and immediately put it up for sale.


You also need to send a trade offer, instructions here https://www.jackyfox.com/steam-offline-trade-link/.