The London System is the most overrated opening, especially when streamers push it on beginners because the Spanish, which they should be learning, is considered too complicated.
Overrated openings
Sicilian. There is no opening often used than this, even if its bad, in this case due to counter openings, such as the allapin
Do you think I play the Italian too often?

I think the Italian is fine at all levels. It relies on basic principles and offers plenty of room for attack and defense. In order to advance at any level, one needs to play chess. The London, while solid, cultivates lazy habits of avoidance.
Everything is unclear for beginners. The point is to get them to play things that will teach them the game. The Italian is a good choice. So is the Spanish. So is the Queen's Gambit. Even the King's Gambit serves well.
Hypermodern openings are less good.
As @Deadmanparty states, all opening are overrated below B class. In my view, he is correct because openings have very little to do with the outcome of the game. Players leave the opening system early, usually by violating basic principles, but they usually get away with it because their opponent does not know how to punish such violations or even when such violations occur.
Games are decided by basic tactics, usually the tactic knows as en prise.
even at our level the italian is all thats played
i love the ruy as black and white but its so rare even at our level
what qualifies an opening as "over-rated".i.e. what makes an opening over-rated (or, conversly, under-rated)?
This is how you should tackle openings.
Pick one that suits your tastes eg. Evans Gambit
Learn every mainline about it and the traps too.
Play it and learn from your mistakes
You should have at least 10.
An opening against the first player's e4, d4, c4, and Nf3
Some openings against the second player's reply to your first move eg. e5, e6, c5, c6, Nf6, g6, d6, Nc6, d5
Study them and learn.

Two of the most popular openings that I find overrated are the Ruy Lopez and the Queens Gambit. I have put moves below for both of them so you can understand why I don't like them.
Ruy Lopez
1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Bc4 A wasted move, black basically got to play a6 for free.
1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 b5 Bb3 a5 The bishop could get trapped if White is not careful.
1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 Bxc6 bxc6 A bishop is normally better than a knight, and even though Black has doubled pawns, the b-file is opened up for the rook.
Queens Gambit
1. d4 d5 2. c4 Bf5 3. cxd5 Nf6 White played three moves with pawns, hasn't developed any pieces, and has some severe central pawn weaknesses. Black will develop pieces faster than White.
Are there any openings that you find overrated?