Shadowing a DP / Getting work on set in London

Hey everyone, I'm looking for advice on ways to get more experience on set and work with experienced DPs.

To give you some context: I have been working as a freelance videographer for two/three years and feel like my learning curve is reaching a plateau as a one man band. I am lucky to have built a decent network of clients providing me with regular work and steady income, but I feel like this route might not necessarily lead me to get more experience as a DP.

I am self taught and haven't had a chance to build a network in the film industry the traditional way. Does anyone have tips or recommendation to get work as an PA / AC in London? I would love to work on set / shadow experienced DPs to keep on learning and progress in this industry.

If any DP or crew based in London is looking for an extra pair of hands willing to put some effort in and learn, hit me up!