Indigestion/heartburn are UNBEARABLE

In 35 weeks today and the indigestion and heartburn is through the roof 😭 I can't take it ughhhh I've been eating small meals or light snacks and staying away from spicy foods but it doesn't seem to be helping one bit. Any tricks to find some relief? I know there's a limit of how many tums us pregnant ladies are supposed to eat daily and they're not doing much good at all..