Good advice. 102m is too shallow for attacking something with an escort. best you can hope for is to go silent running stay below 2kt and change course every time you hear DC's being dropped over head. Always change course using the rudder control NOT the compass and keep your rudder angle at less than 10deg Starboard or Port to make sure you don't lose speed in the turns.
TBH your chances are slim but particularly if there are multiple escorts nunting you even in 1939, but it is possible to escape if you are lucky. Take it as a lesson and move onto the next career.