I’ve been quilting for a long time but didn’t start rotary cutting or machine sewing till the late 90’s. It took forever for me to get points to line up right and even now they don’t always line up precisely. Enjoy the process and don’t be so hard on yourself, you will improve with practice (you can use the blocks you don't care for in future scrap quilts.) Everyone has already given you excellent suggestions. The only thing I can think to add is to sew slower if you have to, especially when you are coming to the end of a piece. Often times that is where new quilters swerve off.