FYI: ‘TTGO LoRa OLED v1’ is the name of a board definition for TTGO LoRa and TTGO LoRa32 boards but is not the product name and version of a board.
Unfortunately there is only a single board definition for these boards while there are many different versions of the TTGO LoRa32 boards (e.g. V1.0, V1.3, V2.0, V2.1.5, V2.1.6).
Please (also) specify the exact name including version of your board.
(It is important to provide as much essential details as possible.)
You used above pin mapping so apparently you have some V2.x and not a V1.x board.
For TTGO LoRa32 V2.0 only DIO0 is (hard-)wired onboard and you will need to manually wire (connect) DIO1 to GPIO33 (for LoRa DIO2 is not needed).
For V2.1.6 (according to another forum user) DIO0, DIO1 and DIO2 are all (hard-)wired onboard by default. For V2.1.5 I’m not sure.
Above DIO1 and DIO2 information is lacking from LilyGO documentation (which is known to be poor and incomplete).