I dont like flying and the furthest i have done is 4hrs on a plane to lanzarote. Im looking for different place to go on holiday and i want to go somewhere new. Been to spain too many times. Anyone sugest a new destination (other than portugal as been there) that takes 4 hrs or less to get to.

How about the Scandinavian countries? Yes, they are a little more expensive than Spain or Portugal, but definitely a good place to spend a vacation.

Or don't fly. You could do a transatlantic crossing on the Queen Mary or Queen Ellizabeth. They still do them, starting from about EUR 2,000 (single ticket, inside cabin, double occupancy). Or just as short cruise for a few days, it doesn't have to be the "big one" right away.

come Bangladesh, I will see you sea, hill and others

That depends on which airport you are flying from, and what sort of holiday you want. Anywhere in Europe is within 4 hours of UK.

If you are flying from the UK, then just about anywhere in Europe is within four hours flying time. Just pick a place you'd like to visit then check the flight time.

EDIT: Have you looked at alternatives to flying eg Eurostar to Paris or Brussels, then fast train to another destination; or ferry from England to France then train to whichever country you want to visit. Not as fast as flying of course, but a viable option, and many people travel this way.