Cooling system I have changed the radiator cap and radiator pls help im kinda new to these things I have a guy who has been helping me with who sounds like he knows what he's

Talking about but I don't know  I live in
Ohio and its really cold he said it the
thermostat but my car is not over
heating.now when we let it warm up
he opened the radiator cap and
coolant came out but was cold from
what he said I didn't touch it so can
you please help maybe it's fine but I
don't know .now I did notice the top
radiator hose was hot but it was like it
was sucking cause the hose looked
like someone was pinching it but after
I shut it off it went back to shape im
pretty sure the person who had it
before me just put some cheap hose
on it .but y would the hose be hot but
the coolant out the radiator is
cold.now the guy helping me said
coolant ain't getting to the engine.I
don't know that's why I figured I try
y'all cause I don't know anyone else
except my dad but he's not here so its
hard for him to help me so please help
thnks