1- I can't speak English well.
It would be a good idea to stay in a UK family for three weeks. Practicing English on a daily basis will hep you speak this language well. I am sure of it.
2- I am very tired and I have a temperature.
First of all you should meet with your doctor who could prescribe adequate mediation against his tireness and your temparute.
3- Look at that man ! He is so ridiculous ! Look at him.
Yes he looks weird. I guess this is fashionable for teenagers.
4- I can't see anyhing. My eyes are getting worse.
You'd better to your eyedotor and get glasses to see better.
5- Do i have to kiss the Head when i meet him ?
Of course not, you just shake hands when you meet him