Hi and Welcome to the world of hobby lockpicking.
Firstly, you have to get yourself some real tools. Make them or buy them, but bobby pins and pen caps are for holding hair and for keeping pens in your pocket.
Our site sponsor has some cool basic lockpick sets to choose from, take a look here:
http://www.lockpickshop.com/SouthOrd-Lock-Picks.html I recommend the MPXS-08 set for beginners, but the final choice is yours.
Secondly, it seems you need to learn how locks work. Just pushing pins up and hoping for the best isnt really picking, its just luck. Most cheap locks will eventually open, but don't expect to open better locks using this method.
Here is a few links which will get your feet wet, but the most important place is this site. Read Read and Read. Some people don't even post for a month, they just read every post they can, and then come back with specific questions.
Those links to get you started:
How does lockpicking wok with lots of pages and nice animations:
http://home.howstuffworks.com/lock-picking.htmA nice visual guide to lockpicking by the good people of Locksport International.
http://cachefly.oreilly.com/make/lsiguide.pdfThe quintessential paper on lockpicking, the 1991 MIT Guide to Lock Picking:
http://www.lysator.liu.se/mit-guide/MITLockGuide.pdfA classic treatise on lockpicking by Matt Blaze:
http://www.crypto.com/papers/notes/picking/Take this weekend to explore these links and read as much as you can, then come back here and start reading every post in every category, its the best way to learn. When your lock picks arrive from lockpickshop in a week or two, you'll be able to actually pick locks without looking like a total noob.
Welcome to the first day of the rest of your life.
Squelchtone