What to do

Hi guys! So i have problem Inreally hope someone can help me so I use this cup bit its very slippery and keeps tilting that It leak but it is fully opened inside and when I am trying to move it around its very slippery,

then I bought another one when I used it the tip sticks out and I cant push it inside anymore since I can feel that it was the deepest it can reach and I can feel my cervix was fully covered. It was not leaking but the tip was sticking out I draw where the part was sticking in the comment I really hope someone can help me I dont wanna use pad anymore since I have a very bad rash when using it thank you