A little practice goes a long way with PAT. To try to do Top Front End questions without ever doing them before is score suicide and there are many tricks in pattern folding which help rule out the wrong answers...
I'm studying PAT right now... Bootcamp has "generators" which create a seemingly endless amount of novel questions to get unlimited practice. If you're taking the test in May.. then buy bootcamp now.. it will not expire until like June/July.
Use the generators to get a feel for each section and once you have made some improvements in each sections then do Crack DAT PAT tests to gauge yourself and further build your exposure and skills.. then do the 10 bootcamp PAT tests while using the generators between tests to work on your weaknesses.
I haven't taken the DAT yet and don't plan on buying Crack DAT PAT.. but I can tell you that just using the bootcamp PAT generators for three days has made a world of a difference. ALSO!! Look on youtube for tips. There are a lot of useful videos that have been made and the tips have really catapulted my PAT abilities.
You have enough time to surpass 75/90 if you put in the hard work.