The mistake I made
Every small $$$ was so damn important to me that I only care about buying Bitcoin, i ignored going for a hardware wallet, until I lost $2000 using a software wallet, this was so painful that I got mad and took out some money to purchase my first Hardware wallet, something that I should have bought right from the start.
The actual mistake of yours is not giving importance to the security of your private keys/seed phrases despite making the same mistakes in the past too.
Let me remind you that having a hardware wallet isn't going to secure your crypto 100% either, it relies on many factors from choosing the wallet type, managing the funds, and where you store your seeds.
Funds stored in Electrum wallet installed in a device which never connected to the internet is safer than keeping the funds in a hardware wallet.