Your pictures could be those of just about every other guy who comes here.
If you're getting irritation, it could be a yeast infection. I would begin by treating for yeast. Any over the counter yeast medicine designed for vaginal infections will work. Apply a couple of times per day and get some inside by squeezing it into the opening and then kneading the foreskin to disperse it.
Read this entire page to discover how things are done. On this page is a post by me which outlines and illustrates the basic exercises. Your tightness will require you to begin with grasping the end of your foreskin and pulling it apart. As you make progress, you'll eventually be able to insert at least one finger, and then with time, the second one.
Be diligent, not missing even one day. It is absolutely crucial that you do this daily, twice or three times if possible. Expansion of the skin requires that you overcome the natural tendency of the tissue to revert to its former shape and size.
Let us know immediately of any challenge. Also, have you had any issues with masturbation?
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