I'm more positive about it. It can be a great learning opportunity. You will definitely learn a lot about bitcoin and blockchain technology in general. And obviously, you will learn so much about digital signatures and security in general. You can then use this knowledge in other projects. Not only blockchain-oriented ones. However, it wouldn't be wise to make your wallet publicly available. Even wallets, that have been developed by many programmers for years get hacked. Yours will be hacked at best in a matter of weeks. As long as you don't publish it and operate it at your own risk (therefore store in it only as much as you are willing to loose in case of unexpected behavior of software), it can be a really good learning experience. Good luck .