@dijit, if you want to improve your relationships, practice the Golden Rule (https://en.wikipedia.org/wiki/Golden_Rule), treat others as you would want to be treated, and don't treat them the way you wouldn't want to be treated.

Have a look at http://www.thewaytohappiness.org/thewaytohappiness/precepts/... and http://www.thewaytohappiness.org/thewaytohappiness/precepts/... which describe and give examples of both sides of this rule.

Don't concentrate on how others may be treating you (delaying your projects) or what you might be doing wrong (toxic interactions) but focus on the positive way you can treat others (fairly? with respect? helping them? etc.)

I challenge you to practice the Golden Rule assiduously for a week and see how life seems then. =)

Good luck!