I never got a chance to reply to this....
Best thing I can say is do as much research as you can about signs, houses and planets. All of these will combine in your chart. Like for example, I'll use what I've been trying to go over in my chart. I've got a complicated Mars. Mars is the traditionally masculine planet, represents war, aggression, action, sex, athleticism etc. It's the natural ruler of Aries, and originally Scorpio too (Pluto is now Scorpio's ruler). Now, in lieu of that, Mars represents all of those particular things in everyone's chart. In some women's chart, it can signify what kind of man they are interested in.
Mars is expressed differently in each sign and house. In terms of signs, it's expression is at it's strongest in Aries, Scorpio and Capricorn, and at it's weakest in Cancer and Libra. That's not to say that you will have a weak Mars overall, it will just be expressed in a way that's not typically Mars-like. Mars in Cancer will tend to be more emotionally driven when it comes to all Mars represents, Mars in Libra will be more diplomatic and balanced, which will dissipate much of that Martian energy.
When you become acquainted with the energy of the planet, you'll know how to best express it to get what you need out of life.
In my chart, Mars is in it's strongest sign of Aries and strongest house (the 1st house). However, it is afflicted by bad aspects to Venus, Neptune and Pluto, and also intercepted within the 1st house (meaning, Aries has no cusp in my chart so it's energy is swallowed). Mars square Venus indicates a struggle to merge the energies between Mars and Venus (feminine planet that rules beauty, love, appreciation of art, senses, food etc and rules Taurus and Libra). This has played out in my awkwardness in dating, but apparently it also signifies sex appeal so go figure
The main problem is that Mars makes an awkward quincunx aspect to Pluto, which is also in it's strongest sign and strongest house (Scorpio, 8th house). Pluto's energies are very dark, they're all about the taboo, the dark side of sex, transformation, regeneration and joint financial matters. Mars in aspect to Pluto brings about forceful, masculine energy that can be dangerous if left festered or not channeled appropriately. It can also bring about great strength and willpower, both physical and mental, and there would need to be a physical activity that exercises it as well as a conscious look at how I'm relating to people and asserting myself as a person.
I've started putting that energy to good use by joining a gym and starting a heavy lifting program. Since then, I've began to feel more fulfilled in that regard, and am looking to add more activities to activate this side of myself. As far as Mars and Venus, I've actively started using the aspect creatively by taking more care of my appearance, and finding appropriate ways to expound my sexual energy (I've decided to use music and writing) as well as embrace both masculine and feminine qualities of my Mars and Venus signs equally.
I'll try and explain more at another time also, but if you can read about your individual aspects and placements in your chart, you can get a better idea of how to work out your energy. If you can post some of them here, I'd be happy to come up with ways to express the energy in your chart better.