How do I buy Tezos?

Could you please elaborate on the steps involved in purchasing Tezos? As a potential investor, I'm interested in understanding the process from start to finish. Firstly, where can I find a reputable exchange that supports Tezos trading? Secondly, what type of wallet would be suitable for securely storing my Tezos tokens? Additionally, are there any specific fees or commissions I should be aware of when making a purchase? Lastly, could you provide any advice on timing my purchase to potentially maximize my investment returns? Thank you for your assistance in navigating this process.