Going crazy

I cannot mentally cope with my 2 year olds inability to nap or go to bed on her own. She’s been a terrible sleeper since birth. We ended up bed sharing starting when she was 2 weeks just so we could get some sleep. She is 2 now and literally can’t sleep without me laying next to her. I’m pregnant now and just I CANT. I never get a moment to myself EVER. Because she needs me to stay there in the bed with her. I can’t even sneak away cause she wakes up instantly. I can’t do CIO cause I live in an apartment but my god this is getting ridiculous. I get so jealous of all my friends BABIES who sleep better than my damn toddler. I have tried all the gentle sleep training and nothing works. But I CANT keep laying with her for every nap and I CANT keep going to bed at 7pm every night. I CANT baby her sleep when I’ll have a new baby who needs to be babied. What do I do?