His Do-over

along those lines

I’d probably study something along those lines.

Here, 'along those lines' means 'similar to' something already mentioned. Notice the following:

1. He hopes to create a new web business or something along those lines.
   
2. I want to build a house or cabin or something along those lines.

cutting edge

Those topics are on the cutting edge of science.

The 'cutting edge' is the most advanced state of something. Notice the following:

1. The ad campaign is on the cutting edge of marketing.
   
2. Punk rock was once on the cutting edge of music experimentation.

push me over the edge

I didn’t have the motivation to push me over the edge.

Here, to 'push over the edge' means to reach a point where success becomes likely. Notice the following:

1. We never quit. We pushed ourselves over the edge when things looked bad.
   
2. I did not want to continue, but she pushed me over the edge.

put your heart into

I really put my heart into it.

When you put your heart into something, you are very committed to making something succeed. Notice the following:

1. If you do not put your heart into your education, you will not learn very much.
   
2. He never put his heart into his job.

try out

I tried out for the football team.

When you try out for a team, you audition to be one of the players. Notice the following:

1. He tried out for the team, but was cut.
   
2. She plans to try out for the cheerleaders.

pass

Trends usually pass.

When somethings passes, it ends or stops existing. Notice the following:

1. Babies cry a lot, but it is a phase that will pass.
   
2. All music trends pass over time.