Well, I have some tips for you. The best you can do is to follow some already made instructions in order to avoid some stupid mistakes that I did for instance. So, check this cool resource about how to become an amazon seller how to become an amazon seller pirscapital.com/blog/amazon-selling-how-to-become-an-amazon-seller/ and be ready to follow a complete guide. Hope it will make sense for you. Cheers
Becoming a seller on Amazon is not difficult at all. If you have a product that you want to sell on Amazon, it is gonna be great fun. All you have to do is visit the Amazon seller website and signup for becoming a seller. Then you will be required to provide your details which will be used by Amazon for transactions and taxes.
Make sure you have all the content (images, SEO optimized description, bullet points, titles, & many other things) with you before signing up so that no delay occurs in listing your products on Amazon.