No, idiot.
Level Sneak to 100, get Assasin's Gloves and strong dagger or bow.
Getting all of this highly specific stuff requires ample gameplay time if you play naturally. Sneak in particular is tricky to level, unless you use exploits. Assassin's Brotherhood gear needs to be found and acquired, the game doesn't tell you "go here to be an assassin" like it does with Dawnguard and Dragonborn dlcs. Same thing with a "strong dagger or bow". Like I said, dozens if not hundreds of hours of gameplay without autism and cheating.
E.g. I decided to join the College of Winterhold a week ago (replaying Skyrim on the Switch) because my level 10 Nord took about three hours to kill a dragon with basic Destruction spells on expert. As I was clearing out the last dungeon in the Greybeards town, I got roofied up by Sanguine, woke up in a city I never been to in previous playthrough, triggered an uprising in that city which ended with me doing a lengthy investigation, ending in prison, breaking out, doing all the other quests in that city, eventually tracked down Sanguine, turned into a vampire along the way, found the guy who heals vampirism, killed a few dragons and giants along the way, did all the quests in the starting city for good measure, which of course involved joining the companions and doing all their quests, and ran into Alduin. Maybe now I'll finally do the mage faction questline.
If you play like an autistic asshat who Googles "best assassin items", runs to get them as soon as you leave Helgen, and then stands under a wall for three hours to max-out sneak, then don't whine that the game is "too easy". You made it that way. Don't metagame in single-player RPGs.
EDIT: we're at the quote-splitting stage of autism, apparently. lol