I'm an old sailmaker. If it's something minor, yes, by all means fix it yourself. If it is a seam that's opened up, be sure & match it up. By that I mean stitching holes matching. In the process of making sails, we utilize the seams to create the shape of the sail. Kind of like making darts in clothing. You can use double sided tape to hold pieces together til sewn down. If it's a tear, you may need to cut out that section out to patch it. If this is the case, you need to take it to a sailmaker who has the necessary stuff to fix the problem. But your machine should be able to handle it.