Great OP, although many people are not happy that selling assets to buy bitcoin is not advisable, but sometimes we need to make tradeoffs, and take risks to achieve greater things. If it is a house or other important assets, it is not recommended, but this is just a bicycle, I believe it will not affect your life too much, and you certainly have a plan for yourself.
The next thing you need to do is hold it long enough until you make a profit, and to do that, you need knowledge, knowledge is the only way to succeed.
Hey bro i think to hodl your is coins is very simple,firstly just move it out of the centralized exchange (binance), because you not completely the owner of the coins when its in there. Then secondly look for a non custodial wallets like the electrum wallet, which has proven to be very good for hodling and safeguarding your coins and don't forget to keeps your seed phrase very secure and probably save it offline. Then the next big thing is that you totally shy away from the market trend because as a newbie the volatility of bitcoin can make you scared and want to sell off when the price eventually dips. Just be sure that the market will pump again. Try and save it for long because that's when you can actually get some tangible profits added to your investments. Again you can decide to sell off your coins but that totally is in your control but a long term investment is more advicable and preferable.
About bitcoin storage, I will have no opinion with you because what you said is absolutely true. But I don't think once you become an investor and avoid market trends, it's not an investment. Once we have invested, we need to accept and face the challenge, only then will we mature and know what to do next to survive in the market. Avoidance is not the way to survive in this market, the more volatile the market, the more you have to face it.