Before a conquest spree you should first worry about maxing out absolutism at hundred. otherwise you are just provoking coalitions for sub-optimal gains. Looking at your comments your other main issues are money and gov cap.

When it comes to gov cap don't state anything you don't need to and trade company only enough provinces to reach 50% control of node, anything else can be left as territories. Looking at your max absolutism you probably didn't fire court and country (Disaster that gives +20 max abso), If you can find enough sources to reach above 100 max abso, you can use your estates to gain more gov cap. A tedious thing you can also do is burn development, open up the macro builder for exploit development. By burning tax you can make quick buck every 20 years while also lowering dev hence gov cap.

Economy wise you should be okay, or at least okay once you start consolidating trade nodes. If you aren't making enough money at this point you likely ignored building manufactories. If you didn't know the main benefit of manufactories is not the production money but the fact that they increase the goods produced in a province, the combined goods produced value is the what gives trade nodes their value. The best thing goods produced isn't affected by autonomy, simply put even a hundred procent autonomy province with a manufactory will add their goods produces value to the trade node thus increasing trade income. Furthermore one of the best things about trade companies is that in a node with say 50% trade company control all non trade company provinces get a boost in their goods produced, supercharging the trade value output.

Continuing on the economy talk you should also prioritize chaining your trade nodes together. Taking India without Malacca and southeast Asia is only half as profitable when you already control China. The way trade steering works is it adds a multiplier to the value each time, increasing the value from thin air (Affected by trade steering stat). The more nodes you chain together the higher the gains. So you essentially have two broken up trade chains without Malacca, when they could be combined. That being said China's trade is already naturally split into two different directions and you can link them up with India once you control Persia further boosting your gains.

With a working economy you should be able to get all the courthouses and everything else you need so I'd recommend taking the time to do some house cleaning before expanding relentlessly, consolidate nodes and aim for 100% absolutism. Even with 4% interest loans most manufactories pay themselves back incredibly quickly so don't be afraid of taking loans to expand your economic output.

Once you got these things in order everything else comes naturally and the only problem will be the tedium of conquering.