Then any other mod after that should be in a step-by-step folder in which it corresponds with when you install it, if it has dependencies, ETC. In short, any base mod you need should have it's own folder so you don't accidentally screw something up.
Then another named 'Step 2' and place the one that needed any other mods in there. Do what you did before and make a new folder, this time name it something like 'Step 1'. Once you're done, look for the mods you want to explore (I'm really big into creatures), then check if those mods need any OTHER dependencies you don't already have. Once you're down, create a folder in a directory and label it something like 'Base Mods'. Download them, install in the correct order, run LOOT (you really will need something that looks through all of it to help you if something messes up), run any mod tools or.
Obvious I know but let me explain further.
Imho, download the base mods needed first. Even following step-by-step instructions can sometimes fuck with you or break something. Lover'sLab is extremely difficult in terms of everything.