Statement recorded in police station is not admissible in court. You can deny it anytime. You can claim you did not said it voluntarily. It is not admissible in court till ypu verify its truthness.
About your marriage if you want to be with your husband you can move petition for restitution of conjugal right and court will order your husband to take you back with him if he did not give any valid reason for throwing you out.
And if you dont want to be with him then you can apply for contested divorce on the basis of cruelty by husband and in laws as well as ypu can file suit against them under sec. 498A of IPC for cruelty done to you by your husbnad and in-laws.
If you want to proceed through police station then you can approach commissioner with written application and request him to take action on the complaint filed by you. Or you can file write petition in High court to direct police to investigate in the matter.