Checking your cervix help?!

Carmen
Hello ladies! So I have just started checking my cervix and I at least know it is high. Idk yet if it is soft or firm or whatnot. I can feel a long slit (I had 1 baby) that I can actually fit part of my finger into. Is this normal?!! Also, it feels like there is tissue or something partially blocking it! I'm really new to this so any help is greatly appreciated!