10V Boost Converter

[dotcom.com]

I am currently working on a design for a 10V Boost converter and wanted to ask for advice on my schematic, especially the oscillator and comparator.
I am relatively new at this and want to ask for advice to meet my design requirements where the Input voltage Vin=5V, Maximum load current = 250mA, Output voltage ripple < 50mV, LIR under 20%, Clock frequency=100KHz and Power efficiency >90%. Everything is done in the transistor level.
Currently I am having issues with my oscillator not producing the correct waveform. It's like a ln graph going into a vertical line. Does my schematics look even remotely correct or could the issue be with parts.

[dobsonr741]

What’s the role of Q1 and Q2?  IMO the schematics is incomplete and by the look of it, my gut tells it does not work.

Can I suggest a ready made converter, like this: https://www.ti.com/lit/ds/symlink/tlv61048.pdf ($1.50 in single quantity)

[dotcom.com]

Yea it was incomplete, i just updated it. Also I don't want to use a IC I am trying to create everything in the transistor level.
So Q1 is a NPN BJT used in the relaxation oscillator (triangular waveform generator) circuit to generate a triangular waveform that will be used as a reference signal for the comparator circuit. Q2 is a NPN BJT used in the comparator circuit to compare the feedback voltage (Vfb) with the triangular waveform generated by Q1. The comparator circuit produces a PWM signal based on the comparison of the Vfb signal and the triangular waveform to control the switching of the MOSFET.

[dobsonr741]

A step up converter is a complicated business. First, try to get the oscillator up and running in simulation. Nothing else. Hint: it will not start from 5V.

[dotcom.com]

So i changed my Voltage source parameter and applied a pulse to help the oscillator but this is what i get at my collector current of Q1. What could be causing this?