How to buy Osmosis?

Could you please elaborate on the process of acquiring Osmosis tokens? I'm a novice in the cryptocurrency world and I'm interested in investing in Osmosis. Could you walk me through the steps from start to finish? What are the prerequisites I need to have before I can start buying Osmosis? Are there any specific wallets or exchanges that I should use? Additionally, could you provide any tips or advice on how to ensure a safe and secure transaction? Thank you for your assistance in navigating this process.