Reaper for $60 bones is awesome, but the evaluation copy will work for 60 days until you are ready to pull the trigger and purchase it.
I believe you can still use the legit full featured "free trial version" of Reaper after the 60 days (for ever). You used to just close the single popup that opens when program launches, and you're off to the races. Was more of a laid back prompt than a demand Would love to know if this is still the case?
As far as software goes, IMO Reaper is the bomb for recording. Have multiple other DAWs but Reaper is the one I recommend. Its crazy small to download (less than 20mb currently), super super stable, easily skinable to both look and act much like any other DAW (why have one when you can basically have them all?), well suppoted (several updates a year with new features people have requested - much like our Kemper coding friends!) and imo, easier to instantly use (in default config) than most "studio" Daw's. As easy to get pro results on Reaper as any other DAW as all of them are basically just a user interface to manipulate audio files. Oh, it can do video too with a simple download.
I paid for Protools a few years back (spendy!) to prep tracks with the inbuilt plugins as almost all studios were using that exclusively at the time, and it was fine to record and interact with, but nowdays I don't even load it. The old squillion dollar PT iLok just sits in a drawer currently.
Really, imo Reapers only weakness is the lack of super fancy onboard plugins, and this can be an issue for many, but all the basics are included and a great way to learn what settings actually do with out just mashing through pretty skinned presets (oh, plugins and vsts are like Kpa profiles btw. Collecting them can become stupidly addictive. Fun to tinker with, but can quickly kill your productivity )
All that said.. if you have Garage Band, give that a spin for sure. Have friend who do demos on that and its seems very 7ser friendly. Recording is super accesable nowdays and a cool adventure to get into.
Hit record, and play. You can't lose.