Basically if you're struggling with industry, cleave your army budget and increase taxes if you really need to. close/shut down factories that become unprofitable and open new ones which appear to be doing well. Liquor is generally a safe one, always look at what goods you have in the economy/what's produced to make sure you're produced goods which are inside your nation. For extra money if you have many goods you can tick the box allowing your population to buy goods from the market. The Main thing I do (I never have industrial problems), is remember to cut budgets for everything until you get your industry sorted. Even if you disband nearly your whole army and navy, just keep focusing on economy, I find wine and Liquor are the best early game, wine more so as I seem to get huge profits from it. If on factory is failing, herd all your works to another one until the time seems right to change back. Get industrial techs as well, as they will keep you ahead in the game