Hi I'm not the best solderer around but I can help...
1.Do you know how to solder a little already?
If so it shouldn't be to hard, just heat up the solder and spread it around a bit.
You have to learn how to solder first.
Get your self 50 LEDs and and 50 750ohm resistors, practice soldering them together.
3.Want to try a challenge?
Buy some SMD LEDs and try soldering them! They're tiny!
Once the success rate of LEDs is ~%80 then continue with step one.
You CAN do it!
Don't give up!