In China, people usually use surnames before their names, such as the names spelled in passports of Deng Xiaoping and China. So the translation of your name should be: He Yulong.

If you can think of another name that is relatively easy for foreigners to remember, Mike, Tom, John, Daniel and so on will do. Of course, it would be better if you could find a name that sounds similar to your Chinese name, such as Li Jiang's English name John.

According to the pronunciation of your Chinese name, I think this English name is more appropriate: Gerald, which means soldier in English.