Does everyone get equal chance

I believe our life is just a test. in a test everyone should've equal chance to make it equitable. I know everyone have different types of test depending on their living condition but some people die very young, some lives long. If there is a bad person who died at young age and another bad person who lives long to become a good person then how this gonna be fair. Also some kids die young who don't get tested as long as someone old to go through all the bad attractions of this world. I know Allah is the only one who can be real judge. even though I'm having this question I'm not questioning Allah I know it's just my limitation so iam seeking help from those have knowledge