Yep, I have no money to buy me a whole and complete equipment. When making music I use the microphone of the PC. To do so, I have simple earplugs that have NO microphone - to avoid double recording. So first Guitar (while having rhythm in the earphones), then I mix drums in it. Then singing - I opt to buy OVOX (it's a small device, not very expensive which makes incredible things with your voice). There is an online program - it's completely free, I use to mix it all up - called "bandlab". They have as well some effects. What I miss is a real looping station - and this OVOX: then I can really start.
Here is an example what you can do with above limited equipment (guitar plus PC etc.):