Career Advice Needed - 30 years old and feel like window is closing

Dear fellow monkeys,

Long time lurker, first time poster here.

A bit about myself, I have a very non-conventional background - I graduated from university abroad in my home country and started out in a local leasing firm as a credit officer analysing leasing credits for SME companies.

After doing this for three years I enrolled at and got admitted to a non-target MBA program . Post-MBA I have been working for a Japanese bank for 3 years as a strategy analyst. This is a very generalist position where I was staffed on a wide variety of projects including a restructuring/workout of a bond portfolio, originating and structuring several power generation project finance deals, and internal credit research and loan portfolio management and ratings analysis of a wide variety of issuers in my coverage sector to name a few.

I feel that I have gained good skills relating to credit risk analysis and broad energy industry expertise.

I would like to transition to one of the BB banks' M&A, LevFin, or RX functions for a stint mainly for the training aspect and my ultimate goal is to work on the buy side related to energy, or specifically in distressed debt/special situations while leveraging my knowledge of the energy sector.

However, I'm now 30 and I wonder if I'm too old to go in at the associate level or if the whole window for getting into ibanking/buyside fixed income has closed, or how I should channel my networking/search efforts.

Additionally I wonder if bankers are receptive to networking requests from older candidates such as myself and not students.

Do I have a chance?