In order to become a blockchain developer, one needs to be innovative, one needs to discover opportunities while the sun shines. In this day and age, if one attempts to develop ios apps, they will discover that they will experience a lot of competition. Not only that, a handful people will be interested in using your app because the market is flooded.
This is where blockchain comes into play. In order to become a blockchain developer, you need to learn solidity. Where do you learn solidity. if you want to learn for free you can learn for free if you follow ivanontech or Moralis Web3 Academy for those who want to pay to learn new skills. This channel provides free lessons.
Number two, you need to use tools such as remix. This is what you will use as a blockchain developer. When you upload a smart contract to the blockchain, it is very difficult to change it.
Truffle is another tool which blockchain developers use when they are doing their work.
If one is very serious they can be a developer in a matter of weeks. However let me stress that is is very difficult to master solidity. It takes a long time to perfect a skill.
You will need to learn how to use hardhat. You will also need to learn how to fetch. Most likely one will use javascript. Let us say you have developed a game, you will need to fetch scores and etc from players. This is where javascript is used to fetch.
You will also need to watch smart contracts. You will use javascript to do a lot of things on the blockchain.
Step number one it is recommended to learn java script. After learning java then move to learn solidity.
Java script is used everywhere.