Unknown memory device that I cannot remove. # hacked and This is admin now in that device? REset ALL HOW?

Unknown memory device that I cannot remove. # hacked and This is admin now in that device? REset ALL HOW? Macbook Pro 2017 intel. ALSO memory 513gb to over 1000 couse of this Disk devise and I have likw 3 safari, appstore x4 everything was disguise as Apple apps .. that disk is full 500gb So wtf should I do? Photos they send my mail everywhere, keys for crypto, laptop, and id also is total.. BY PRESSING MAP on mac activites FACETIME and inside keyboard is softfare that records everithing I type. ( Found that also ) Micks are open but accsess not granted gps open.. 2 iphppysfone and mac.. HOW TO CLEAN? ---is this normal and who did I ****? 41 login sametime.