You could perhaps take a stronger, more cathartic, approach in ridding yourself of these energies. They are usually there for a reason. Look deeply into your life, into your past. See if you can find from where these enrgies originate. Cleansings are, on the whole, quite gentle. However, sometimes we have deep feeings of anger and resentment that simply have to come out. Especially if we tend to be "nice" people.
Once you have identified the source of the energies, do whatever practical things in life that might be needed. For example, if someone has wronged you, tell them, in an assertive way, that they have hurt you and that you are angry with them. Perhaps you are suffering from a degree of grief, - take the time to say goodbye to whatever it was you lost, be it a person, an opportunity, or a trust.
When you have done all you can practically, you can direct the residual energy in ritual. I usually have some old plates available for such purposes. Turn some thrashy music up loud, kick out at things, (which won't hurt you), smash some plates, scream and shout. Yell out names! Wear yourself out. You might cry, but that means it is working.
When you are done, clean up. As you clean, put on some peaceful music and light a white candle. Think about the fact that you are cleaning up, and parting with, those negative emotions. Say goodbye to broken items. You can actualy bury them if you like. Or burn them. When all is in order, carry out a meditation during which you put the past behind you. Cast a white cloak over yourself, and visualise yourself walking into your new life. Your life without the burden of your negtive energies.
Good luck! :D