just discuss with ur parent nicely, say u will still focus on ur study and do house work . just play music because it is fun and better than go watching TV. it 's just like another sport.if they still cant accept mayb need to put ur thing in ur fren place first. remember never forget and give up the love for music. maintain and hold on to the root of reason why u are into mussic. in the mean time dun hurt ur parents, no them means no you remember. no them no u, no u means u got no chance to love in music. take them slowly.