There are many things you can do to contribute to Bitcoin, the simplest thing is you can start investing in it and hold it in your wallet. Or you can spread the right education about Bitcoin to others and teach them how to invest their money in Bitcoin, or pay for your credit or internet package with Bitcoin. Simple things like that have really helped Bitcoin to grow in the future.
I'm not sure if this has been discussed in another thread, please point it out if it has, do you have any particular people/credible outlets that provide accurate news on crypto/Bitcoin? (YouTubers/Outlets/etc.)