i want to start my own online buiseness or webshop

i want to make money online because its fun and it gets good payments i want to start my own webshop because i want to sell things i like that so my plan is to start my own webshop and I'm gonna promote it on tiktok instagram or Facebook for more sales so everybody seeing my products and buy them and then their friend for more sales so thats my plan for the webshop