First Steps

First Step Build a shelter and get a bed. Night time can be very difficult. With the Ore Excavation mod, you can vein mine trees. This will allow you to gather resources for a shelter quickly. Followed by a Tinkers' Construct smeltery. Using Pam's Harvest, establish a food source, especially potatoes...

Exploration Some buildings are haunted. The monsters that spawn in haunted buildings can spawn quickly and run very fast. These mobs also have really good armor and a lot of health. Explore with caution. In case you thought that was it, mobs have guns and they hurt if not armored well. Thanks to HardcoreDarkness, darkness is real. Carry many torches. Find a village and look for a resident that can trade with you for items from the ActuallyAdditions mod. A book is provided at the start, read it. Note locations of ore clusters you find using Journey Map. It will help you get the resources you'll need later.

Advancement Once you get into building tech, Mekanism is a very nice mod for providing many useful machines. This includes ways to multiply your ore into many ingots (x2, x3, x4, and x5). Start with a Heat Generator then add a Metallurgic Infuser. Then you'll need to build a Crusher and then a better power source. Making a Bio-generator is useful (it runs on potatoes!). Once you have those, use the wiki (http://wiki.aidancbrady.com/wiki/Main_Page) to help you discover what else you may want to build.

Use advancements from Actually Additions and Extra Utilities as well.