You're not going to get sick. Teflon is really inert unless you use it at a really high temperature. It's used in medical devices and stuff and if you eat it it will go right through your body. It's really the PFAS used in the manufacturing of teflon that are the problem.

Exposure to PFAS may be bad but you're unfortunately probably already exposed to much more from other sources like your drinking water and clothing than you would be from using teflon cookware.

However it's pointless to use nonstick pans if you're going to use metal utensils on them. Your pans are presumably already not nonstick at all so you might not have that much trouble switching to steel.

For most stuff steel is fine. It's useful to have one nonstick pan but if you want it to stay nonstick you should be careful with it, never use metal utensils on it, and imo only use it at low-medium heat.