Yes, angels, guides, messengers, etc exist and are here to help us. However, they do not exist to provide us comfort, unless you mean to help us get past suffering by changing our attitudes and thus not suffering from the things that people ask for relief from. Many of our soul contracts provide for pain. The angels don't exist to make us happy and have painless lives. They will help us out of situations that we are not supposed to encounter. Here is a great story about guardian angels by Rebecca Romanelli https://medium.com/illumination-curated/guardian-angels-saved-my-life-5c4c840bafbd