I was advised to try my hand at developing on Solidity,
You should first decide what you have in mind when you say "blockchain development". For example I wouldn't call learning Solidity "blockchain development" since the only utility of this programming language is to create useless tokens on token creation platforms.
I was thinking the same, is hard to start a project if you don't know what's the goal, OP need to decide the road before start walking, some projects i would suggest:
-Casino/CryptoGame
-Online Wallet
-Exchange/Swap
-Mixer
Any of those projects can be worked with blockchain and Js, so, good luck with the way you choose and if you get stuck don't hesitate to contact the community again.