基本符合你的要求：

　　Hello,everyone,MynameisXX,todayiamverygladtocomehereandintroducemyselftoyou.Iamanoutgoinggirlandiliketomakefriendswithallofyou.iamalsoverylivelyandoptimistic.

　　Mymostsignificanthobbyistraveling,stayingwithlocalfamilies,andseeingtheircountriesthroughtheireyes…definitelynotasatourist.Ialsoenjoyhostingpeoplefromothercountriesandshowingthemaroundours.

　　Someofmyotherhobbiesincludelanguagestudy,drawing,playingsoccer,reading,andlisteningtomusic.Iplayedsoccerlastyearformycity’slocalteam.Ialsolikedrawingrealisticportraitsandmanga.Ienjoyreadingtoo,andmyfavoritebooksareHarryPotterseriesbyJ.K.Rowling,andLordoftheFliesbyWilliamGolding.Ilovemusicfromallovertheworld.

　　I'mlookingforwardtogettingtoknowallofyou.

　　大家好,我的名字是XX,今天我很高兴来到这里介绍自己,我是一个外向的女孩,活泼开朗,很希望和大家做朋友!

　　我的爱好很广泛,我最大爱好是旅游,入住当地家庭,并通过他们认识他们的国家......绝对不是单纯为了旅游.我也很喜欢接待来自其他国家的人们.

　　我的一些其他爱好包括外语学习,绘画,看球赛,读书和听音乐.我也踢足球,去年参加了我的城市的本地团队.我也很喜欢画写真和漫画.我喜欢读书,我最喜欢的书是JK罗琳的哈利波特系列.我热爱音乐,来自世界各地的音乐都喜欢.

　　我希望和大家互相认识!

　　增加了不少内容了。应该可以了。Hello,everyone,MynameisXX,todayiamverygladtocomehereandintroducemyselftoyou.Iamanoutgoinggirlandiliketomakefriendswithallofyou.iamalsoverylivelyandoptimistic.Ican’tseeIamaprettygirl,butIamnotanuglyperson,either.Iamverygeneral.Ican’tsaytoomuchaboutmyappearance.Mymostsignificanthobbyistraveling,stayingwithlocalfamilies,andseeingtheircountriesthroughtheireyes…definitelynotasatourist.Ialsoenjoyhostingpeoplefromothercountriesandshowingthemaroundours.Someofmyotherhobbiesincludelanguagestudy,drawing,playingsoccer,reading,andlisteningtomusic.Iplayedsoccerlastyearformycity’slocalteam.Ialsolikedrawingrealisticportraitsandmanga.Ienjoyreadingtoo,andmyfavoritebooksareHarryPotterseriesbyJ.K.Rowling,andLordoftheFliesbyWilliamGolding.Ikeepreadinghalfanhoureveryday.Ilovemusicfromallovertheworld.Ilikeyellowthemost.Yellowisthecolorofthesun,itcanremindmeofawarm,sunnyday.Yellowisalsothecolorofwisdom.IlikeEnglishandChinesebest.IwanttoestablishanEnglishclub.IwanteveryonetospeakEnglishinthedailylife.Allabovearemyrealthings.Ihopeeveryonewilllikeme.追问有字数限制，中文我发你百度hi。