Baby not sleeping through the night

I have an 8-month-old and she never sleeps long stretches at night without waking up (she wakes up once or twice every night at 1am and also sometimes at 4am). I can only recall one or two times in her life, when she was basically an older newborn, where she slept a stretch longer than 6 hrs. These night wakings are killing us. She also seems to get enough food and drink during the day too (she’s in the 75th % for weight). Anyone else experiencing the same thing? I keep reading that they’re supposed to be able to sleep like 10+ hour stretches at night without needing to feed and I remember my eldest always being able to sleep long stretches like 11 hours at night! She always went down a lot easier than this baby (who hates going down for sleep).