I learned everything I know by looking either it up online or through my own experimentation. There are literally hundreds and hundreds of resources already available for free that tackle everything from beginner to advanced techniques in sewing, electronics, sculpture, mold making, etc etc! Learn the basics first and then use this knowledge as a springboard to developing your own techniques. Maybe you'll discover something new, you'll never know until you try!
Myself, I do this for a living and it's how I put food on the table. It's flattering that people ask for me for help (really!) but I'm not here to give away my hard-earned secrets! Thanks for understanding