key way Hinduism is different than Christianity or Islam
There is no judgement day in Hinduism. There is a concept of heaven, but you don't get access to heaven after an evaluation of your deeds at your end of life. The evaluation keeps happening at every action you take throughout your life.
The objective in Hinduism is that you keep trying to do every action perfectly. And if you have done sufficient actions perfectly, you will begin to understand perfection, or the Supreme. And once you do, then you are in heaven.
In case your life ends before you reach perfection, you get another chance. That chance could be as any lifeform, known or unknown.
Hinduism defines perfect action as one where you do any act with intent of best meaning as you see fit, but at the same time, you sacrifice the outcome. i.e if you are meant to build a house for sale, your perfect action would be to build the best house you can build. And the intent of making little profit, mega profit, or go in loss, is to be ignored. If you have an opportunity to build a house, build the best one you are capable of.
If you are wondering, if such a behaviour wouldn't allow you to live in the capitalistic or materialist world, it actually does. The magical thing that Hinduism says would happen when you ignore the expectation of the outcome, or completely give into the Supreme, is that at the end of the current task, a new opportunity will emerge, and will keep emerging, giving you both a chance to reach for perfection as well as give you all you need to keep doing the activity you need to do, for completing the opportunities that befall you.