The PSN ID you're currently using for your Bungie.net profile does not have any deleted characters. On your Destiny 2 save data, you've only had a Titan and a Warlock. With that being said, having a look at your play history, it has been several years since you had played, and Destiny 2's gameplay has evolved and changed since the last time you played. The base power level has also increased and since it had been so long since you played, your characters were brought up to the current base of 1100. Also, after New Light came out, characters that hadn't made a significant amount of story progress were treated to the 'waking up' story mission as was first introduced back in Destiny 1. It doesn't mean your characters were deleted, just that they didn't fit the criteria to have skipped that. Perhaps this is why you feel like a new game started? Your Titan does have about 60 hours of gameplay on it.