Don't force it, and go at your own pace. If you still find that you're not having fun, try looking up a guide or walkthrough. Having directions or tips can make DS1 a little more tolerable for those who are having a rough go of it.

If all else fails, and the series still interests you regardless, you can always try one of the other two entries and see if they stick better. Good luck if you go back to it!

The end of the road, you will realise the whole game was "oh my god I get it" moment. Or, if you start to analyze it.

For me was when I started looking into lore and guide videos after I completed the game for the first time. Everything will start to click eventually, it's insane.