It doesn't matter how much you bought; the fact is, you are holding Bitcoin. Don't feel yourself small, because you are part of a big community called the Bitcoin community. You said true; without acquiring Bitcoin, you can't gain proper knowledge. I assume you bought through Binance P2P and will be discouraged from storing your bitcoin there.
Yes, the OP seems a little pessimistic about the small amount of investment he made, but it's a good start to continue accumulating.
0.00035334 BTC will be a large amount when holding for the long term and capitalizing on the momentum of the Halving that will happen next year.
When the price of Bitcoin reaches an ATH of more than $150k it will be a sizable amount too if the investment continues to accumulate.
Just use a non-custodial wallet like Electrum to secure your funds. That's the better way to avoid unwanted incidents.
Storage on the Electrum non-hold wallet you suggest also seems to require security from the user,
as the password phrase will be the responsibility of the user to secure properly.
Some Electrum users have been hacked while using the Electrum app, perhaps due to the vulnerability of their device or their carelessness.
Hardware wallets are a good suggestion too, but choose one that is Open Source and fully developed on a regular basis.