I need your honest opinion

I need advice (whoever reads this feel free to answer). I am from South America, my family from my father´s side comes from Italy, and from my mother´s side from Spain, obviously I grew in the Catholic faith. I really have a hard time believing in God or Jesus in the Catholic way; do not misunderstand me, I totally share the principles of catholicism, I think they are basically good, and mostly in oposition to other religions (specifically Muslims, dear muslims get offended all you want, I do not care).
I really feel great when I go to church and sit there all alone, I pray for my departed ones. I feel a tremendous relief in that moment; churches were meant to pray, even to meditate and that silence and peace is amazing.
The thing is that if I analize what I do is always the same: think about my dead grandmother and the rest of my departed family members and friends. I find it natural, but it is werid to explain when I question the existence of God.
I really feel that my dead ones deserve to be remembered and I hate it when people avoid talking about them as if to avoid thinking about their own dead, in my case thinking about my deads gives me stregth because I know that wherever they are they want the best for me, and deserve respect.
I don`t know how to approach this: I intendo to make a shrine where I will lit a candle and maybe make some offering, pray for them. I am asking all of you this because I feel this need to have them near; in my family I am the only person interested in keeping the old pictures I inherited from my grandmother, the memories and such, I feel it´s like a torch that one has to carry because in the next generations all that will be lost and I refuse to let that happen.
In short I need to know if this need of such conection is shared by other people and if as pagans (or not, all opinions are welcome) this makes sense and if so, how would you suggest I should/could do this.
Thank you in advance.