If you are stuck on or confused by the course, no worries! There are many ways to get help with both this course and FTC OnBot Java.
There are many resources for you to get help with FTC OnBot Java.
Your best resource by far would by stackoverflow. You can ask any questions related to Java or programming, and you can get help from the largest community of programmers online.
We recommend reaching out to the FIRST Tech Challenge subreddit. There are a lot of fellow FTC programmers who are willing to help you. Most likely, your problem has been faced by many others (and potentially already solved!)