I was mining bitcoin back in 2011 but lost my wallet/gave up etc etc...
Is it still worthwhile getting back into crypto?
If you mean getting back into mining -- may be worth it, but will depend on your electricity price and require a lot of commitment.
If mean getting back into crypto in general -- it's always worthwhile to get back into crypto. Just watch out for scammy ICOs, useless alts and other questionable investments.
Mining is always tricky especially if you 're not willing to reinvest in hashing and have plans for scaling up.