Fill one field with custom list values if another field has a specific custom list value

I have a field ‘type’ with custom list values one of which is ‘success’. It also has other values.

I have another field ‘temp’ with custom list values ‘hot’, ‘cold’, ‘cool’, ‘warm’.

What I want is to ensure the field ‘temp’ has values from the custom list if the type ‘field’ has value ‘success’, else left blank

Similarly I have another field ‘temp value’ with number with min 19 and max 34 which should get filled if the type ‘field’ has value ‘success’, else left blank / 0.

Sincerely appreciate all help.

Thanks