Can't believe it hasn't been said already but:-
I would recruit my government advisors and political party from MNs - it's got all the answers!
Find a broom cupboard to lock Liz and Nadine in too.
I would look for the NHS post Brexit money bus money - it must have gone somewhere. Surely nobody lied!!!
I would let Scotland and Northern Ireland hold the referendum the appear to want - purely to reduce costs rather than any other reason.
More seriously...
I would actually talk to the real workers in the NHS - not the oversupply of management in the NHS. Same spend but better allocated.
I would arrange a Visa programme for genuine, properly vetted overseas workers and invite them back.
I would build more prisons - firstly to support construction, secondly to actually reduce the level of crime and resources issue, none of this reform/second changes stuff either, you do the crime, do the time and also create employment.
I would also get tougher on child maintenance. Why should the government have to subside absent fathers etc? Mandatory wage deduction or jail. Also and of the playing the system, we live separately again.
Social housing - again no issue providing it but abuse it, you lose it.
Mandatory financial literacy classes in school too. Teach children from an early age about economics and budgets and how to secure their financial future and how to manage in difficult times.
Fines for companies who waste resources, fuel, electricity etc.
I would focus on the green economy, CSR, stem - viable, indigenous business from education to company start ups etc.
I would also raise taxes as there is no way to get out of a recession and truly kerb inflation otherwise.