I regret having another child

My youngest is 3 and I really wanted baby #2 but she is INSUFFERABLE. I know this sounds terrible but I literally can’t get anything done, we’re staying with family for a few months and they can’t stand all the screaming and crying. I spend 99% of the time trying to keep her quiet. It’s so difficult to find remote work because she’s always under me and won’t be quiet. I’ve had to leave jobs because of this before I’ve gotten fired. I’m pretty sure she has ADHD…I’ve raised other kids and I know how toddlers are…this is so different. I want to put her in daycare so I can work but I can’t find a daycare close by and because we’re so far out there aren’t any bus lines. I want to cry every second of every day because of the fact I need a second job but can’t find wfh opportunities fast enough of ideally one that doesn’t require phones (I’ll take anything atp), we’re staying with family and I hate it and trying to keep my kids quiet 24/7 is draining. I can’t help think how much easier everything would be if I didn’t want another baby. I understand it’ll get easier but I feel like I can’t move forward rn because of her behavior. I need to find somewhere to live where it’s just me and my kids so that I can’t move forward parent properly without family losing their shit because of the crying but there’s literally nowhere to go. I hate this and just needed to vent.