Using the Cricut Maker is relatively easy to do because you don't actually have to own a machine to make an account. You can merely go to the Cricut design space and create an account: https://cricut.com/en_us/customer/account/login/
Be sure you don't give any personal information to the company. It will ask for an email and password, that will be how you sign into your account.
If you use the Cricut at school, and want to take your design home to transfer it, here's a video to walk you through the process. If you don't have the protective paper she mentions, parchment paper for baking works well. DO NOT USE WAXED PAPER!!!
Links mentioned in the video: the actual directions start about a minute into the video.
Here's a link to the remove background from image site: https://www.remove.bg/
Here's a link to the free SVG converter https://picsvg.com/