It's a process and it takes time. The only real advice is to do the research required to make sure.
Some leave the JWs and live for decades still believing it all and feeling guilty and worthless as a result, if they had done the research and found out it's all lies they could at least have enjoyed their time a whole lot more.
To cut to the chase here, it is a cult. As hard as that word is to hear, there is no doubt about it once you do the research honestly. Once you realise you have been duped for your whole life it will have emotional consequences that can take years to get past, but boy the freedom is awesome and so worth the effort to obtain!
Take it slow and double check. Avoid speaking to others about what you find as there are obvious consequences for doing so without care.
You should certainly postpone / avoid your daughter getting baptised before 18 (if at all). You know the possible ramifications for young teens getting baptised then getting into difficulty, so you have a right to say no until she is 18. Hopefully by then she will not want to at all.
Yes you need to read read read. Take your time, it is worth it.
A basic suggested reading list for exiting:
Combating Cult Mind Control - Steven Hassan
Crisis of Conscience - Ray Franz
The Bible Unearthed - Israel Finklestein
jwfacts.com
