I need a miracle 💤💤

looking for some advice, my little girl is 14 months, never been a great sleeper, sleeps in her own cot & has done since about 5 months or there abouts, this week she moved in to her own room, but literally won’t settled unless she can see one of us, so we have to sit in her room until she falls asleep as she can’t self soothe which could take up to 2 hours, but the big issue is when she wakes in the night she doesn’t go back to sleep again for hours, is there anything I can try to help her settle in her room& help to self soothe herself back to sleep?