Since I believe it will be better if I first understand bitcoin's technical side before I proceed on the forum, I am currently beginning my journey with it from a technical standpoint.
But as I was researching, I found out that I first needed to download a file called the bitcoin core in order to start storing my bitcoin. In light of this, I want to know if there is any other way to store bitcoin besides downloading the core. And which is safer.

And if there is, I'd love it if the senior members could assist me with it. It seems to me that utilising the bitcoin core on a mobile device won't be much easier for me, so please let me know if you know of any way to store my bitcoin without downloading the complete bitcoin core.