if you love trading, be patient. If you ask general questions means you do not have an analytical mindset or you did not run your 48 hours desk research on the internet. I would humbly suggest you to start with fractional shares, there are some brokers which you do not pay a commission for, as far as I know, but I am junior, so I just observe and make minimal moves (because I miss football). Make your self familiar with owning a share for some time, and then after some experience start to do some day trading. Please, please, please read this link
https://www.sec.gov/reportspubs/investor-publications/investorpubsdaytipshtm.html
https://www.sec.gov/reportspubs/investor-publications/investorpubsdaytipshtm.html