Advice for a new Nids player

I’ve recently started migrating over from Kill Team to full scale 40k thanks to picking up some of the combat patrol magazines.

I’m a big fan of the hobby side and I’ve spent my New Year’s Day painting this Pyschophage (still need to base!)

I’m looking for some help on creating a 1,000 points list that could feature: -Winged Hive Tyrant ( from combat patrol mag) - Pyschophage - 20-30 Termagants

I’d like to work towards 2,000 eventually but 1,000 seems like a good start! Thanks in advance