Talk to General Physician on Diagnose , Type 2 Diabetes

I was facing high bp frm last week which is giving me vey much problem 155 plus sometimes, than i contact doctor in hospital where i was given some tests so i did when get reports shown to doctor he advised me type 2 diabetic suggest me some medicines and advise me to chk nd maintain a sugar chart after every meal i want to ask what r the precautions for this nd also tell me in brief about it doctor advise me to maintain graph for one week plz advised i am very much worried my cholesterol level was also high now i caring myself as the doctor advise