Share 'i need alot of help, nubie in dire need'

so i bought pears and mangos about 2 weeks ago.  the pears are seem to not be ripe yet and some seem to look kind of ripe but are horribly not edible  extremely starchy.  its just wierd, im very unexpierinced with fruit.  and the mangoes seem like they are finally ripe,  they were hard and unsweet and now soft but they taste like alcohol!  nubie in need of serious advice.  please help