Chris, Since you are looking at the Boss Katana 50 I would just go slow as others have said. The Katana has many of the well known Boss effects that are included in the setup that you can try out first. This is just what I copied from their description of the amp you are looking at:
Stage-ready 50-watt combo amp with a custom 12-inch speaker
Five unique amp characters: Clean, Crunch, Lead, Brown (derived from the Waza amp), and Acoustic (for acoustic-electric guitars)
Choose from a huge selection of customizable effects and effect routing configurations with the BOSS Tone Studio editor software
Dedicated gain, EQ, and effects controls for adjusting sounds quickly
Four Tone Setting memories for storing and recalling all amp and effect settings
Power Control for achieving cranked-amp tone and dynamic response at low volumes
Three Cabinet Resonance types for fine-tuning the tone and feel
Mic’d cabinet emulation on the USB and phones/recording outputs, with customizable tone via three Air Feel settings
Channel and global parametric EQs for refined sound shaping
Built-in tilt stand for optimal monitoring and sound projection
Pro setups available at BOSS Tone Central
Katana Version 3 Newly Added Features
Effects selection expanded to 61 different types; Roland DC-30 Analog Chorus-Echo, BOSS GE-10 Graphic Equalizer, and 95E pedal wah added
Assign favorite effects parameters to the front-panel effects knobs
Assign specific effects parameters for control from an expression pedal connected via the rear panel
Record with stereo mod, EQ, delay, and reverb effects in a DAW via USB
I have an older Fender Mustang IIIv2 that has so many effects I will never use them all. Plus you can download presets that others have made and posted that you can try out and modify. The Katana amps seem to be hot right now from what I have read. Plus for $230 for the Katana 50, that's less than what 2 "real pedals" cost. Might still need a looper as Diane said. Good Luck, GH