Can someone still go to trail if there are no witness present or enough evidence?

is it possible for the court to convict someone without witness being present at the trail? Well let me explain what happen. I called the cops on my brother and made false allegations about him hitting me...chasing me with a knife...and also said he hit me wit my car i did that because i was anger at him yelling at me and misplacing my cell phone. I took it too far when i lied and made up the bullshit story. He is charged with 3 counts for my anger problem now he has to suffer the consciouses for my lies...he currently lost his job because he was arrested for 3 days and was said he abounded his ob for not calling in absent but his employee is willing to take him back once he settles his court problems...anyways long story short i ended up confessing to the DA and the judge during the Preliminary hearing and i was drilled on the stand with cross examination questions i confessed to the judge what i did and guess what they think am lying now because am trying to save my brother. the judge said he had a lot of people hide stuff for family mostly husband and wife and the next week the woman gets killed its freakin ridiculous my brother and i are very close I feel hurt about what i did. now the system won't believe me because they think am a innocent victim trying to recant he dam story NOT THE FREAKIN CASE HERE...neways is it possible for this case to go to trail? and if so how would that work? Why cant the damn DA or judge dismiss the case it sucks how men aren't trusted if a woman says something guess what its true no matter if she's lying to them so ridiculous...Help what should i do from here? this sucks big time