There are two ways you can go in terms of actually gambling online, web-based instant play platforms and downloadable software. Web based platforms offer almost immediate playing and a nearly identical experience to the downloadable software. In the past downloadable software was the best, but now I prefer to play through instant play platforms. Playing at an online casino begins with you registering an account on the website of the spot you want to play at https://myfreepokies.net/ . This is sometimes done on the casino web site and sometimes through the software. Then you must put some into your account. The vast majority of the time this is done with a credit (or debit) card. Other options include Western Union, Bitcoin, and bank wires, although some sites carry substantial fees for using these services. Beware that some credit cards will treat deposits to an online casino as a cash advance. If this happens then you may have success in arguing the charge but many credit cards have a flat policy that a purchase of casino chips counts as a cash advance. I recommend using debit cards instead, as there is never a cash advance fee and the transactions are posted faster.
Once you have money in your account you may then begin to play. Be sure to check the rules first, many online casinos favor European rules which can be different than U.S. rules. This can be good or bad depending on the particular rule. As you play I would suggest documenting everything you do. Personally I use graph paper to keep a running track of my bankroll and the total amount bet.