Basically just keep using your SP on the most important attribute until the ALG will take it the rest of the way up-
and then go on to the 2nd most important attribute and keep going down the line like that. For the most part you do not
want to "spread out" your SP early (you will be screwed later if you do) or go back-and-forth spending SP, but there is
some debate about putting SP in up to the cap once the next attribute gets close enough, which i personally do,
but otherwise you want to just stick with one at a time, don't spend SP on SA until at least lev 55 (i'd say 60)
and mutli-train your first 4 seasons then switch over to light if you want to afford 4 AEQs.
This is a very very basic summary of what most of the guides will tell you.
You could read all the guides but also if you can do a bit of math
you can just use this one page:
http://wiki.goallineblitz.com/index.php/Levelingand figure it out from there. From the Value of Attribute Increases (Rounded to the Hundredth Decimal Place) table
you can add up how many ALG will be added to your attributes to calculate how high they will get that attribute,
and thus how many points you have to add via SP (and/or training) to get it to the number you want to!
If you don't know how high to get the attribute, you can always ask on here because everyone has an opinion-
but in the end you will need to figure out for yourself which works best for what you're trying to do.
I just mention this because all that reading all at once can seem intimidating to jump into for some people
but if you get the general gist of how to build a dot, you'll be fine, and then you can use the guides as you go along
to help you make the specific decisions and ask people also for advice