Can you help ma guys. pls.

You can't, unless it has personal information or if it is inappropriate. I don't think your username fits the critirea though, sorry. You can make a new account though.

Also, please don't suggest a username change option as it is rejected:

8.1 Changing usernames
If a user could change their username (or even set a certain “nickname”), this could be very confusing for the Scratch community, especially for those following that user. In addition, this would make moderation of the website more difficult because it would be harder for the Scratch Team to keep an eye on what a user may be doing. The Scratch Team has allowed username changes only on very rare occasions, such as if the username contained inappropriate content or personal information. Generally the Scratch Team does not change usernames on request (including for reasons such as “I do not like my current username anymore”).

However, because of the way that usernames are stored on the server, changing the cases of letters in your username (for example, changing @Za-Chary to @ZA-CHARY) is NOT rejected; you can discuss it on this topic.

Hey there! No, you can't sorry.

Unfortunately, you can't change your username. The Scratch Team actually has changed a few usernames before, but only in very rare cases and only for special reasons, like if the username revealed personal information or was inappropriate; they won't change a username without a very good reason, and “I don't like my username” doesn't count as a very good reason in their eyes. In the past, they have considered making private username changes possible, but they decided against it, citing moderation concerns and the potential confusion a username change could cause in the community. For more information, read section 8.1 in the List of Rejected Suggestions.However, that doesn't mean you're out of options. You can choose to create a new account, transfer your current projects over by downloading/reuploading them, and make it clear that you're moving; keep in mind though that your statistics, like your follower count or the loves you've gotten on your projects, cannot be transferred over. Alternatively, if you don't want to lose those statistics, you can choose to stay with your current account and live with your username. Check out this helpful guide for more information.

Another reason you can change your username, as seen in https://scratch.mit.edu/users/racingace/'s case, it can be because disphoria was built around it. I think this is one of the only accounts I've actually seen the username change. Hopefully this helps

You could always make a new account, then transfer your projects to the new account by downloading them. It looks like you've been on for only about 16 days, so that won't be a huge change.