You've got Mars in an angular house. That does make its energy strong for you. And it's talking to, by aspect, not only Jupiter, but Pluto. The explosiveness you describe sounds like that combination.
You also have Aquarius rising. Aquarius's archetype is the truth sayer. Aquarius just has to speak its truth.
Trying to shut up is never going to work for you. Best if you don't try.
If you're worried about saying too much and offending people, or being too demanding, you could probably feel more in control of that by doing something that matters to you. Your Mars/Saturn opposition is not only part of a t-square, it's also given some relief by your Sun, which trines Mars and sextiles Saturn. That adds some smooth flowing energy to the mix, but keep in mind, Mars and Saturn meet in your Sun. Whatever you do, it needs to be something that fits your Sun message of personal growth.
I'm thinking do here because Sun trines Mars in Virgo, and Virgo is all about doing. Mars is passion. If you do what you're passionate about, you're channeling that energy. If you don't do what you're passionate about, you'll explode. Or, worse, give your Mars power away, which results in drawing people into your life who reflect Mars at you in a horrific way. (If your relationship with your husband is not like that, then you're holding onto your Mars energy. But if you had any previous partners, it's possible the relationship was like that, if you were not as well in tune with your Mars at the time.)
And because this is a trine to your Sun, this should be doing something that feeds your own personal growth. Capricorn especially likes having a goal to achieve. With an eleventh house sun, maybe this is a social goal, a team effort, or a community building kind of goal. Maybe it's something that's for yourself but others help you get there.