Lisp is a lot of fun. My two big pieces of advice would be to use a structural editor like paredit from the start, and to connect the editor to the REPL. One of the biggest differences with how Lisp is developed from most languages is that you start the program, then connect your editor to it, and write code in the context of a running program. Any function you right, you can immediately run and see what it’s doing, you can inspect anything in the running system like database connections, or service calls, etc. There’s basically no compile cycle in Lisp.