Meaning of AMUSE in English
BAD : I made a lot of new friends during my stay in England and amused myself a lot.
GOOD : I made a lot of new friends during my stay in England and really enjoyed myself.
amuse yourself = do something to stop yourself from getting bored: 'Can't you find something to do to amuse yourself?' 'With a pencil or two and a few sheets of paper, young children can amuse themselves for hours.'
enjoy yourself = have a pleasant time: 'The party was a huge success and all the guests enjoyed themselves.'
Longman Common Errors English vocabulary. Английский словарь распространенных ошибок Longman. 2012