My advice would be to give yourself a bit of a break from flying under instruction and just get some hours of pure enjoyment and practice first.
The IMC requires you to fly fairly precisely and it will help you a lot if you have got more comfortable with the aircraft by the time you start. The closer that the basic handling (and RT for that matter) becomes to second nature the more mental capacity you'll have available for the IMC work. I had 300+ hours when I started mine and I found I was working hard. If I'd only had 50 or 60 it would have been a lot harder I'm sure.
People can and do successfully do the IMC very soon after their PPL, but unless you have a pressing reason to do so I'd relax a little and just enjoy the freedom to fly for a while before doing more formal training.