Elizabrat: start with a 9 patch, adjust the needle till you get your seam right, remeasure after every seam, before you know it you will do it with out even thinking about it.
And another trick I learned here is square up at every step. When you make a block with points remember that the fabric does not come to a point until after it is sewn. That concept took me a really long time to learn.
I have been quilting for 30 years and I avoided making anything with a point. Now I can make points with a lot better accuracy.
Check out the tutorials on the Tutorials thread.
http://www.quiltingboard.com/tutorials-f10/
Or the quilters Cache, they have a lot of cool blocks that are easy, and eventually you will be stepping up to the harder ones.
http://www.quilterscache.com/QuiltBlocksGalore.html