Toddler sleep regression

My daughter has slept through the night since 5 weeks old without issues. All the sudden she started screaming at bed time, waking up all through the night screaming and waking up at 5 am ready to go. She began climbing out of her crib (even in a sleep sack) so we had to move her to a toddler bed. Now she’s in our room all hours of the night wanting to hang out. Not getting any sleep! When will this be over? Just a phase? Any suggestions from someone who has been through this? Also we have a new baby due this March so would really like to get this sorted out by then!