How to Use SRM in topcoder for exercises

Http://community.topcoder.com/tc
I saw a document about how to use topcoder's SRM for exercises and competitions, and then I learned a little bit about it. I still want to explain it to me !!
First of all, registration is very tedious. A bunch of information needs to be filled in, and it is all in English, but the English level is not so good, so I had to look up the dictionary while filling in the information. For details, refer to the registration and registration in the attachment (I have not seen this file at the time of registration). I set a Game Information reminder during registration, but every time I send an email, I don't know where the competition is. I later saw someone on the Forum saying that I want to download plug-ins or something. After a long time, I still didn't understand it. Today I finally learned a little about it according to the file prompts, although the description in the file is very detailed, but still encountered some small problems
First, click the O (n) icon in the upper left corner and enter the interface that appears for the first time in the file. However, if Java is not downloaded, You have to download the Java Plug-in and install it, the first interface in the exercise will appear, so there is nothing to say about it. Another point in the exercise is that when the compiler is added, it is not mentioned in the exercise. Although it is very easy to explain, after clicking Add, a dialog box will pop up, including name entrypoint and class path. You need to fill in this item by yourself, you can't just fill it out one by one as shown in the file (that is displayed after adding). Just click Save, maybe you will get this topcoder in the future.
However, I feel that it should be great to use it. Each question has time constraints and can be challenged by competitors. Unfortunately, the process is too complicated.