Sore throats and colds

I hate this, I just drink warm drinks, eat soup, have a shower/ bath and sleep. I find soothers don't work for me.

You need to stay hydrated. Drink a lot of water. Steam and vitamin C are also good ideas. Take a hot bath and try and rest.
I also find herbal tea helps a lot.

Recently i've been getting very short colds that last only a few hours then go....... same with a fever I felt the other week that went quickly.

If you feel weak, your body needs sugar. If you feel dehydrated and stuffy, you need water. If you're hot, you need to cool off (so no blankets or use a fan) and if your throat is sore, it may be from sleeping with your mouth open (which admittedly, I do) so just drink until your throat isn't dry or gurgle mouthwash to get rid of bacteria.
My boyfriend would refuse to let me be covered with blankets while having a cold, and even though I thought it was ridiculous at the time, it actually helped. :) Have a few relaxed days and have plenty of vitamins (because why not?)

I normally drink some lemsip with honey - That really helps :).

Yeah, Lemsip tastes like crap but it does help