Darker blondish red to light blonde

I haven't used sun in, but I have used those Sunsilk lightening mousses years ago, and it worked really well. ANd you can apply only where you want it to give it a highlighthing affect.

Highlights are more of a commitment, but I agree, probably the better way to go. Try to go to a salon if you can.

Sun In is available at most drug stores.

I'm contemplating home highlights too!

Thanks. Will I need to go to a salon to get the highlights?

Or highlights...that way you can acheive a mostly blonde look without having to color it all.

There's no putting lighter blonde color on hair, the hair is always made lighter by lightening.  You can choose different products to do this, like highlighting, bleach, or dye (but it has to be dye with a lot of "lift" for the lightening, a box color from the drugstore usually just makes people's hair turn orange).  Which product is up to you.  Highlights give you a textured look and roots every 1-2 months, and dye or bleach will give you all over blonde and roots about every 3 weeks.

If your hair is already dark blonde, you probably don't need bleach.  Its very damaging, and probably would get it white pretty quickly (not necessary if you only want dark strawberry blonde).

Unfortunately, I'm not a pro, and I also can't see your hair.  If I were going from my dark blonde to lighter, I'd just use a high lift dye with 40 volume developer (you need to get that at a beauty supply shop), probably twice, and use it with a "high lift" dye that has a green base (if I could find it), or a blue base (if I couldn't).  The base is important.  This gets my hair to go through an orangy stage, then to yellow.  If its too yellow for you, you can go over it with a violet toner, or dye it again with a violet dye (but not with the 40 volume developer, use something weaker like 10 so its less damaging because you already got it lifted to where you want it - if you keep going with the peroxide it'll end up white).

You REALLY need to test strand this though, since you are new to dye, make sure you don't do anything to your whole head you won't like!  If you lift for too long, you'll go past a strawberry blonde and into yellow pretty quickly.  Test strand every step of whatever you do on a hidden piece of hair, and keep doing test strands keeping track of different timing so you know exactly what to do on your hair.