If you touch a 230V line you will get a shock and possibly die. So don't do it.
Electricians have insulated tools to protect them from accidental shock, but even then they turn off the power before working on mains power lines. Study physics and electricity thoroughly, only play with low voltage electricity, maximum,12 volts, for hobby and learning purposes, until you become knowedgeable and qualified.
A Few Instructional Electronics Sites
We are happy to offer the best advice and wisdom we can, but we may be a little unresponsive when a questioner has apparently not done any basic study.
By taking time to read up on the basics, you will progressively gain knowledge and ideas of what is possible, and soon be able to design and make circuits work (almost) the first time. (Just like we all do (sometimes). ;-)
To obtain an understanding of electronics, the following sites offer free courses of instruction and advice for beginners. Have look at a few, and discover which one(s) suit your approach. Start with simple projects and work your way up.
We will always be here to offer the best advice and wisdom we can. Many sites have a user forum for asking questions on any technical aspect.
Old (allegedly Chinese) proverb: “A journey of a thousand miles begins with but a single step.” ---------- http://www.allaboutcircuits.com - a series of online textbooks covering electricity and electronics
www.learnabout-electronics.org/index.php - Descriptions of components and principles, good diagrams, animations, & fault-finding techniques
