We are both actively exploring the stars and the ocean. There's still a lot we don't know and there's still plenty of species being discovered in rainforest all the time.

Bacterias and viruses are also something that you can never finish exploring and there are for sure weird creatures like tardigrades that are still undiscovered.

You're just in time to discover genetics, epigenetics, biomechanics of nutrition, chemistry, biochemistry, how to make custom creatures from DNA building blocks, protein folding applications, mysteries of how the brain works and even math as mature as it is also has tons of undiscovered parts.

Sure you might be too late and to early for a couple of specific things but science discovery is absolutely exploding and random average Joe types are discovering things all the time. I think on the contrary now is one of the most likely things where you can just flat out discover something about the world that nobody has discovered before.