i read your query, you can start Tab. Olmesartan+metoprolol
combination ( olmezest
beta 20/50 mg) .
and regularly monitor your b.p. mean while you have under go some basic test like ECG, BLOOD UREA , CREATININE
before starting medication. And also you start life style modification by , reduce salt intake , start regular brisk walking 30 mts day , at least 5 days in a week, avoid stress