Are there any humans willin to share some advice and info about ethereim?

I’m totally new to crypto. As the future moves forward I’m seeing more changes leading to crypto. I’m looking for some advice on a few things if someone could be so kind to help me it would be great (not the most tech savvy guy) 1.) I have Coinbase setup to buy crypto as well as fidelity. As far as purchasing crypto is there a definitive strategy to buy or should I take large amounts of cash weekly to buy? 2.) what is the purpose of cake wallet and other things like that I’ve heard of ? 3.) how can I contribute to the crypto community to make it a better place. I’m a blue collar guy but, I see the world changing fast and I’m looking to change gears and keep up with it hit. I’m actually moving to Eastern Europe to further excel in my career as a welder and ironworker. I’m sure the questions I’ve asked are repeatedly asked and I apologize. Google use to be a place where you could really search for things undiluted and get real answers. Now it’s much harder. Basically looking to move completely towards crypto using it for business and understand buying strategies and being able to help build the community.