Calm down. You have to calm down right now otherwise you're going to do something silly like try to 'help' the chick to hatch and you'll end up killing it by dragging it out of the shell before it's ready to hatch out. You're not doing anything wrong. You have to stop thinking that you should be doing anything at all right now. If you've got your temp stable and your humidity up high, you've done everything that you can and you've done it right. Now just sit back, try to relax, and DON'T open the bator. After pipping, chicks can take another 36 hours to hatch. It's perfectly normal. If you think it's hard to wait that long, you should try ducks, they usually take a minimum of 36 hours, and can go two days easy before they pop out. Now that really IS torture!
If it helps you to wait, try to understand the whole hatching process. Chicks don't pip the shell because they're ready to pop out right there and then, they pip the shell because they're running out of oxygen in there and if they don't, they'll suffocate! So they pip, and start breathing fresh air, but they still have a lot of developing to do. When they pip, their yolk sac is still external and attached to their umbilicus, and you REALLY don't want them hatching out before they've absorbed that. So they rest in the shell, breathing the fresh air, slowly absorbing their yolk sac and building their strength up for the fnal push, when they zip round the shell and pop the top off. The resting stage is an absolutely essential part of the hatching process and you just have to learn to let them get on with it in their own time.
Good luck. I hope you have some chickies out very soon. Before you just burst with excitement. LOL! I remember my first hatch being the same...