How do I get her to sleep

So my daughter is bout to turn 8 months she usually breastfeed to take a nap and then let’s go of my boob my problem is that she won’t stay asleep if I’m not next to her that movement that I move she wakes up I have tried pacifier , putting a pillow next to her with one my shirts nothing seem to work! Idk what to do I’m homeschooling my 7 years old soon I can’t be in the bed all that time! I’m stressing out a lot! And sending her to school is not a option my baby has problems with her lungs so I’m scared of all that germs from school! HELP! Lol