I will leave you guys to discuss Tip 1. I move on to Tip 2 - it's progressive muscular relaxation.
Everyone should learn PMR. Why? It's easy and useful and free. For the purposes of IM/LOA, you use PMR to deeply relax your entire body, before you actually start manifesting your goals. Apart from that, you can use PMR as a tool in itself, for stress management.
No point in me typing out what is available elsewhere on the Internet. Here are three links that give you information about how to do PMR.
Link 1 Link 2 Link 3
Through using PMR, you're also going to find out where you habitually carry the most unnecessary tension in your own body. For some people, it's going to be in the shoulders; for others, it could be in the jaws or lower back etc. For example, you might be habitually tensing your shoulders, as you type at your computer, or you might be constantly clenching your jaws, when there isn't any need for this.
Once you identify your regular tension areas, just pay a little attention to them every now and then, throughout your normal day, and practise dropping the tension.
As you drop your habitual tension & anxiety, you'll feel calmer, more relaxed, more peaceful .... All of these will put you in a better frame of mind to do manifesting.