Switching the company

Question

As It is my first job.Since I have completed 9 months till now but in aspect of salary is not good here,as I am working in Product based company,mostly projects here is not at freshers levels so learning is not much here.The main problem that I am facing here is that is 3 months notice period.Ohers company mostly join within 15days or immediate basis.What should I do please suggust me.I am in big trouble as some financial issues are there.