I was wondering, should i invest my points into all the specials to get a full 10 across the board? Or should i just get perks then later focus on the SPECIALS?

Decide which perks you can live without first.

Give starting stats at 1,1,10,1,10,1,1 (3 points left over)

Invest up to the perks you can't live without.

Use items to get your stats 10+ later with clothes, drugs etc.

I'd advise against putting 10 in one stat right away, there are bobbleheads that give free stats to your special.

I would suggest that your first perks go into things like Lockpicking, Hacking, Scrapping, etc. Things that you WILL need to do better almost immediately. The growth of a perk sequence will often tell you when you will need to improve an Attribute, and how much.

When you are allocating Attribute points during the creation phase, keep in mind what the perk Attribute minimums -- http://fallout.wikia.com/wiki/Fallout_4_perks --you will need to fulfill in order to take the perks that you want/need. I also advise against setting any Attribute to 10 at creation. There are quite a few Attribute increasing items to be found early on and throughout the play of the game. Those things are wasted if the affected Attribute is already maxed out. Points that were spent on a maxed Attribute are points that were NOT spent helping other Attributes that also provide useful effects. There are NO useless S.P.E.C.I.A.L. Attributes. (Like in so many RPGs, Charisma is often a "throwaway" Attribute, with few real consequences to keeping it low in order to boost some other Attribute.) Deliberately keeping any Attribute low -- below 3 in my opinion -- is counterproductive in the long run. Often in the short run too, given how many different ways the Wasteland can kill you.

with bobblehead 11 is max

Perks are definitely more useful than SPECIALs. As CaptainPatch mentioned, things like Lockpicking and Hacking more difficult locks or terminals can only be achieved by unlocking the respective Perk. None of this is covered by the SPECIALs themselves.

Also note that none of the SPECIALs influences the damage that guns can inflict, the potency of chems, etc. In my opinion, while SPECIALs are important, it is the perks that really define your character.

In my mind, you should only increase a SPECIAL if (i) you want to unlock a perk that requires it, or (ii) if you want the benefits of increasing that specific perk (e.g. more carry weight with Strength, health with Endurance). Note however that some Perks are even more powerful than SPECIAL in raising stats.

Examples:

i) Increasing Strength by +1 gives 10 more carry capacity. However, at level 6 you may invest in the Strong Back perk. If you spend 2 points on the perk, it would be +50 carry capacity, which is equivalent to an additional 5 points invested in Strength. Hence, you can save 3 level up points to spend elsewhere if you do not wish to unlock the other perks in Strength and you are not playing a melee character.

ii) Alternatively, you could invest in Armorer and add pockets to your armor. Each pocket gives +5 more carry weight.

iii) Perks like gun nut and science allows you to tailor your weapons to suit your play style. Much easier to craft a scope to put onto your rifle than it is to find an enemy that drops one, especially early-on in the game.

iv) Weapon strength perks like Rifleman can help you dish out more damage to enemies, which would be particularly helpful late-game when enemies have much higher damage resistance.