You're very welcome .. .. .. .
About 6 years ago, I was where you are now and the folk on here have given me endless help and support .. it's a good place to be !
If you need any help with the IDE or indeed anything else, just shout .. .. you might find this useful
www.arduino.cc/en/Guide/ArduinoNano
As for projects, there are knowledgeable folk on here who would tell you I undertake some of the weirdest projects on the planet, and they're probably right, so I'm also the last person to ask .. .. .. .. . there is an abundance of likely targets on the net however.
One major thing I've learnt, is to assemble a new project in stages, i.e. get the LCD working, then fire some data at it .. .. then modify the data .. etc, etc .. .. ..
One more question about the Hakko 907 .. are you sure the Mosfet is IRLZ44N not IRFZ44N ??
Let me know how you get on .. .. .. .. .. .
MM