You’re just like me hahaha. My first smartphone was an LG Optimus too, the L70 model. I used for almost the same amount of time, until 2020. It still works, but I stopped using it due to the lack of storage space (2GB only) and older android version. I still think that phone is the perfect size, and would love to have the same model, but with upgraded specs. Then I had to get another one, and moved to Samsung too, but the A01 core.
Yeah the older android version is what killed it for me really, as I would have even kept using it as a wireless device. I couldn’t install my preferred browser, email app, reddit is fun etc on it after enough years. I even rooted it and looked into installing a new version of Android on it but couldn’t haha. It was compact, comfortable to hold, but big enough to browse and read text or to use an onscreen keyboard without much trouble. I was really disappointed to learn that there just were no phones compatible with 4G/LTE running Android 8 or higher that size, not even cheapie ones.
I managed to install lineageos on mine and extend its life for a few years, but the storage limitation was the bottleneck, as I had about 600mb for all my apps and data. I still used that device for a good while, even after buying another, because that size is so comfortable to me. It was so sad when if stopped working after emmc wear :(
