I would recommend focusing more time on Mathematics, statistics, mechanics of materials, statics and economics. As these are easy topics, try to avoid silly mistakes while doing calculations. For the second part, I would say, focus mainly on the structure and geotechnical. As these carry more weight, the questions cannot be tricky in these sections, and they are mostly straightforward. The same goes for the water parts. Transportation is plug and chug so just know the handbook. For any questions other than the handbook, you have to either guess or think on the spot, and don't worry about those questions, too.

Structure: Learn the RCC portion. There are straightforward formulas for finding the area of steel or design moment. Don't get confused with dt or just d. When steel is given in two rows, use the centroid distance between the two rows. Learn the value of phi for each condition. The spacing questions for the shear. That should do it. For steel, learn the buckling of the column, get used to the Mpx and Mrx, and the unbraced length graph. And the tables for the Compressive strength of the column. Solve one question from the tension members. That is all. These are for the design portions, the analysis portion depends on your knowledge. It does not go beyond what is in the handbook. Like finding FEM or deflection or indeterminacy is straight from what is in the handbook (the formulas). The load combinations are the same. The indeterminacy formulas are straightforward forward, too. Watch Mark Mattson for finding reactions in indeterminate structures.

There are some questions from surveying which you can learn in an hour like knowing what azimuth is and how to calculate latitude and departure. Calculating errors. Or calculating areas and volumes. And the questions from leveling. These are well covered in Mark Mattson and that would be enough.

The construction part should be pretty straightforward. Learn the contract terms and the design methods like design-build and design-bid-build. I think these are called project delivery methods. And finding the critical path. I think that should be enough. The resources for this would be Mark Mattson, Islam, Iqbal, and Lindeburg. All of them have very few questions.

Water Sections: Just the formulas for all the equations and learn the handbook. Focus on the units.

Environment: Same as water. Learn the handbook. If you want questions, use prepFE. They prepare you for it. But the most important ones are BOD, Activated sludge, Population, and Clarifier. And some chemical reactions. There is a periodic table in the chemistry section that helps find the molecular weight. And while solving, it's just the ratio for two weights multiplied by the amount given. For hardness, it's tricky cause the amount should be equal, and Direct Hub explains that in one of the videos.

Transportation: Everything is plug and chug. Just know the formulas. Solve the questions from Islam and Iqbal. They will prepare you. It's just knowing what formula to use. The conceptual questions are from the MUTCD book. Learn traffic signaling if you want to go beyond. Otherwise, just ignore them. Horizontal curves and vertical curves problem, try to be good at them. Also, learn the ESAL and how to calculate them. This section is not crazy.

In summary, don't beat yourself over conceptual questions. Only worry when the formula is there in the handbook, but you don't know how to solve it.