How aggressive can the queen's gambit be? Should I play it if I want an aggressive game?

I really want to know if there is any way the queen's gambit declined can drag the opponent into an aggressive and tactical game and they cannot avoid those lines. (that's all I want to ask you can skip the rest if you want) I currently play 1.e4 e5 2.Nc3, and I prepared smith morra gambit against the Sicilian. And want to change my opening. Now I am considering the Scotch game, or the scotch gambit, or the queen's gambit.

The queen's gambit is the first opening I learn. As most beginners like to accept the gambit, it won me lots of games. But after play this opening for 300 games, I feel like it's tricks only. (when I was 800 rating) Then I switch to play 1.e4 and play another even more tricky opening. (the Vienna game) I start to look at some variations using chess engine and see if I can find some lines which suit me. There are some tricks like 1.e4 e5 2.Nc3 Bc5 3.Qh5 Qf6 4.f4 Qxf4 5.d4. (I really like this one) Generally, people accept the Vienna gambit and I can have an easy game. I don't know why I thought the Vienna Game would not bore me. Maybe I just wanted to try and never think that I will play this opening so much. But yes, I also feel bored playing the Vienna Game now. Another thing I don't like about the Vienna Gambit is the mainline gives white bad pawn structure and the attack is too slow and my king is too weak.

I never like to play openings like Ruy Lopez or Italian Game because I think every 1.e4 e5 player would have a weapon against them. I am thinking about the scotch gambit as I think it is not as common as Ruy Lopez or Italian Game. And it's also not a very rare opening. I think I can understand more theory and start to learn mainline stuff. It's time to play like a GM! Maybe the Scotch game or the queen's gambit is a good choice to kick off.

 Or if you have any opening recommendations plz feel free to tell me. Sorry for my poor English I've tried my best.

I don't mind building a completely new opening repertoire. I think I am good at play wide open and very aggressive games. (just personal opinion) But playing games like that can barely learn middlegame strategies, someday I will have to learn those things.

The QG has been a reliable weapon for the most aggressive players in history. Kasparov played it frequently, it was Frank Marshalls main weapon, there are even some impressive Tal wins with it.  You can't force black into a QGD though.  You would need a repertoire against the dutch, Nf6, etc.  It might be easier to play the scotch rather than come up with a new repertoire. 

If you look at my games I play mostly QG, I recommend it but it does require lot of studying like you need to look at the slav, semi slav, catalan, catalan closed, and Catalan open

QGD exchange variation can get pretty sharp, especially if white castles queenside